maybe because there isn't that much to bitcoin mining to build a simulator about. in your example about PC builder, there is a lot of components about a PC and assembling one is a tough thing to do for the first timers as there are a lot of steps and a lot of components.
with bitcoin mining there is 1 ASIC that you connect and start mining with a small initial setup.

your idea could work with building GPU mining rigs. but the problem is that it becomes hyped from time to time when altcoins are pumping then it becomes boring to the point that nobody is interested in it anymore.

i honestly wouldn't call this a "puzzle" because a puzzle is when there is some sort of problem that you think about and solve with different hidden clues.
this seems like a brute force attack specially after i read their latest tips, they are basically saying you should try different values (that is brute force) until you find the answer which is far from how a puzzle should work.

when steam engine was invented the stables (for horses) became obsolete and there wasn't any need for it. you can still build one and hold horses there but they won't be used for transportation.

with bitcoin, the need for banks no longer exists. you can create a bitcoin bank and get some fools in (like what Coinbase is doing) but it is only limited to those fools and has no other usages.

governments like Indian government is always going to push back against bitcoin adoption and will continue trying to slow it down as much as they can because they see it as a threat to their corrupted banking system in place and are afraid that people may no longer need their system if they adopt bitcoin and that threatens their power.
the thing is that all they can ever do is to "slow down" the eventual demise of their corruption not prevent it.

but if there were any more corrections on the way then they would have started already. not to mention that there isn't anything left to correct! price went up to $9k and then saw a little correction where it came back to $8.5k again and that was the only correction needed. anything more is not going to be a correction but an unreasonable drop.

you can keep expecting a better coin but it won't happen any time soon. you see there has not been any major innovation in cryptocurrency world after bitcoin was created and the greed of making money from newbies has blinded majority of developers that they stopped trying and decided to create shitcoins (aka the easy way) and make money instead of innovating.

i am not sure how hardware wallets are related to this incident since it was a personal mistake and was about trusting random websites with pretty designs.
but i have to say, hardware  wallet is not the only way to go. basically people need to learn how bitcoin works and how to secure their private keys. this is mainly about cold storage and HWs are for special cases where people want to keep accessing their coins and mainly carry it around or maybe connect it to a system that may be compromised and use their coins.

if i were you i would try to analyze the market myself and come up with my own speculation rather than asking others like this. even if you make mistakes it still is going to be your own experience.

but if you want my prediction i think price is going to slowly rise and until February we may be well above $10k. but as others always point out it is not possible to predict bitcoin.

the number looks scary in USD terms but not in bitcoin terms. $1.6 billion is about 188000 bitcoin which is only ~1% of the current circulating supply. in other words if this number is correct (which i don't think it is since the source is unreliable) then it means 99% of those who have invested in bitcoin are using it regularly!

all that stats is pure nonsense because they are basically saying that if a coin hasn't moved for n number of days then it is considered lost and that is bullshit. it is like saying if you buy a bar of gold and not sell it after a year that gold bar turns into garbage!

even people like Schiff who claim to have lost their bitcoins may be lying or best case scenario they may recover it at some point so it wasn't really lost.
the only coins that are truly lost are those that are burnt like these two cases:
1. coins that are burnt (with OP_RETURN only)
2. coins that were never claimed (that is a miner who doesn't claim the block reward.

that is not what a "significant rejection" looks like. all we had was a tiny drop after a big rise in a short time and things are moving ahead slowly because we are still in the early days of 2020 and things haven't warmed up yet not to mention that over the past week there has been a lot of FUD trying to manipulate the price and prolong the accumulation stage for no reason.

ps. seems like some people are getting excited about altcoins by looking at their USD price. you should take a look at the real price of altcoins which is in BTC to see what is really going on...

this is how bitcoin works:
you have a transaction output that has a value, lets say the value is 10. you spend this output and create a couple of new outputs that each have a value of their own. lets say you created 3 and the values were: 1, 4, 3.
this means you have paid 2 units in fee which is calculated automatically.

now to answer your question it depends on how you create that transaction. if for example your paper wallet has 1 bitcoin in it and you spent 0.6 bitcoin and didn't set any change address or any other outputs, then your remainder (0.4BTC) goes to the miner as fees.
usually the problem that OP pointed out is about people creating a new wallet (that has its own addresses) then import their paper wallet, spend a small amount of it (0.6 out of 1) then the remainder goes to a change address from that wallet (0.4) then they throw away that wallet!!! that is when they lose money.

i haven't seen these in action so it is hard to say what their use cases are.

what i can think of is something like this:
imagine you were working in a company as budget manager and were only responsible for how much bitcoin is being spent not "where and how". for example you say this month we can use 1BTC out of the budget for whatever. they sent you a transaction (it needs to be multi-sig) spending 1BTC and you provide one signature with your key out of n with SIGHASH_NONE saying "i allow spending of 1BTC out of our budget (ie. the txins that the transaction has as input) but don't care where it is being spent" then the other parties that are responsible for spending  set the destination (like paying the employees each 0.01BTC) and provide at least one signature with SIGHASH_ALL.

SIGHASH_SIGNLE could be the same scenario where you say the same thing but it has an addendum "... and i want X amount be paid to this address".
for example in payment scenario, you say pay 0.5 to this address (the CEO's paycheck!) and i don't care what you do with the remaining 0.5, the accounting department sets the rest (0.01 to each employee).

he has no supporters or even a cult. there are just some people who are using him and his scam to make money so while he is in the front and is receiving all the hate, they make a shittone of money. the example is how they pumped the shitcoin called bcashsv recently due to all the drama that they also sponsored on the internet to hype that shitcoin up for pumping.

did you read the replies in your other topic? the answer to this question is already explained there in 2 posts particularly in this one: https://bitcointalk.org/index.php?topic=5216988.msg53606106#msg53606106

that analogy only works in a perfect world not the real world that we live in. in real world there aren't 4 people each with 1 apple, instead there are 5 people 4 of which have 1 apple each and another person with a bushel of apples. when price falls that 1 person aka the whale can dump his bushel crashing the price. in that case it doesn't matter if there are holders, he still crashed the market and then bought cheap apples at the bottom.
in this scenario the only thing that prevents him from crashing the market as low as he wants is the buyers who are making the crash exponentially harder with their buy support.

note that i am not saying holders are completely ineffective, just that their effect on market price is very minimal.

do we even know what the address that contains the 2.1 bitcoin reward is? i saw other people post a bunch of addresses, some even had balances but nothing that lead to this puzzle.
even if you wanted to brute force it, you have to know the address otherwise you're left with building a big blockchain index and then looking up the results that is not worth it.

you seem to focus a lot on "more people not selling" instead of focusing on "more people buying" which is in my opinion the main reason why bitcoin price keeps going on. you see, whether or not someone holds their bitcoin isn't going to affect the market at all because someone who holds is not even participating in the market. but those that are buying are actually participating in the market (with their buys) so they are affecting the price.

so the only logical conclusion is that price goes up as more people start buying bitcoin. or in better terms, as more money comes in whether it is from new investors or the old investors investing more money.

this has always been another proof of one of the real motivations behind CSW scams. it is to earn a shitton of money. without all that drama a shitcoin such as BSV  would have been dead like the other 50+ bitcoin-somthings that were  created in 2017. but all the lies and scams and the money he used to pump this shitcoin is giving him profit.
BSV is the clear example of how the altcoin pump and dump scheme works.

there is also a step 0 to this that sometimes some beginners mess up.
0. don't accumulate dust in your wallet.
"dust" is the small transaction outputs, or in simple terms it is the small payments that you receive from different places like faucets, micro jobs,... not only it is a waste of time but also when it is time to spend all those coins the resulting transaction size will be huge and require a much higher fee.