Paypal/creditcard gives some fraud protection, which is part of the fee. If you divide the total bitcoin fraud by the total bitcoin transaction volume, you get a much higher "fee".

That's not lost in the sense of this topic. You lost them, but they're not out of the network.
Compare losing a 100 dollar bill to a camp fire, or losing it on the street for someone to find. The latter is what happened to you.

I have some (small) buy and sale orders open on kraken.com all the time now. If it goes up enough, I sell some. If it goes down enough, I buy some. Let's call it play money, hoping to get more out than I put in.
The way I set it up I'll either get more bitcoins, or some cash. I can't get less bitcoins than I put in.

My question now is: how good/bad is this for Bitcoin? Yes it's value may go up as more coins are lost, but on the other hand it does not inspire confidence to people if your money can be lost this easily!
Just like I once read that fraud should be added to the transaction cost, just like the cost of fraud is included in a credit card fee. If you include this, Bitcoin transactions are much more expensive than conventional banking. If 10-20% of all bitcoins are lost in just 7 years, how likely are you to still have your coins a few decades from now?

I know I should have gone in much bigger, but that's in retrospect. I just do small buys in altcoins, see how it turns out without risking a lot.

I bought just 1.8 ETH to try, sold 0.8 at a profit, and now have 1 ETH to hold. It does look promising, but that has been said about so many altcoins.

This problem is in the design of Bitcoin. I'm familiar with Doge and LTC, both have much faster confirmations.
I don't know if it would be possible to increase the number of blocks in Bitcoin, say from 1 per 10 minutes to 1 per minute on average. That would also increase the number of transactions it can handle, but the block reward must go down with it.

I was wondering about the same thing I think I've wagered about 15 bitcoin spread over several accounts. I did win some, I did lose some.
Highest ever loss at once: around 0.08 BTC. Highest ever win: 0.25 BTC (in a contest).

History shows you can never be sure about this
I am quite sure though it will be anywhere between $100 and $2000, and with the block reward going down 50% this year, I expect the bitcoin price to go up a bit. Say $600.

If it's profitable, sales go up, difficulty goes up, and ROI takes more than a year. The whole mining business is a race against the competition.
In the end, it takes more computating power to find the next block, while by design on average only one block is found every 10 minutes. So you can never guarantee ROI to be a year.

No

Religion has nothing to do with science though... Religion now is exactly the same as it was 1000 years ago.

You're a funny guy... always complaining and always coming back to the site. Having a gambling problem doesn't make the casino a scam.

I should have tried before typing
Skins won't help, as I disabled it for performance reasons.

I have a request: is it possible to give my own blobs a unique color that does not change (for me)? It's fine to see other colors for other people, and changing them all the time is fine too, but changing my color too gets confusing sometimes. For example, I was red with more than 10 blobs, someone else was red too and came in for the attack. It's virtually impossible to keep track of who-is-who in that case.
If I could be red, and all the other users keep changing colors to anything-but-red, that would be perfect!

Edit: I see names are back, in that case it doesn't matter anymore

I think it has to do with taxes, I found on Google there is for example a 28% capital gain tax on gold in the USA.
Forbes explains why gold and silver coins are not used to pay:

Aren't they also killing their own, because they believe a fraction different than the rest? Lovely peace they have!

If that would be true, you could prove that, which is exactly the what provably fair means. But you can't, otherwise you would have done that already.

Guys... It's called gambling for a reason! Losing doesn't mean it's a scam, and provably fair doesn't mean you can't lose.

You're saying you'll finally provide some evidence?

You make it sound like a mob-deal, where both parties bring 12 armed guys and in the end everybody ends up dead.

I haven't sold bitcoin in person (yet), but I did sell and buy lots of items online, for instance laptops and tablets. Usually at my house, or the other person's house. But I've also met in person in-between so we both didn't travel too much, selling stuff in a car. Not in a dark alley of course.
Although bitcoin is not much different than cash when it comes to the risk of getting robbed, it does give me a more "shady" feeling to do the same sale for bitcoin. Maybe it's only in my mind.