In this case all active users will lose their airdropped merits at a same rate.
The rate of losing airdropped merits can be a function of earned merits in the last X days too.
For example, if someone had received 500 airdropped merits and has also earned 500 merits doesn't lose airdropped merits. Because this user deserved those airdropped merits.

We can have several inputs and outputs in a single transaction.

The fee should be higher than zero, so the transaction is included in a block.
You can use the link below for the calculation of the required fee.
https://www.buybitcoinworldwide.com/fee-calculator/

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By the way, making multiple posts in a row is against forum rules.
Please delete the last post you made and merge it into the previous one.
1. Edit the last post you made. 2. Copy the entire post into your clipboard. 3. Edit the previous post and paste your clipboard content. 4. delete your last post.

Does anyone know how merit ratio is calculated?
As it is said on the website, merit ratio is Merit sent/received ratio. I checked some profiles. That doesn't seem to be true.
For example, Theymos has sent 11850 merits and has received 6273 merits. So merit ratio should be 11850/6273= 1.89. But the merit ratio is 0.84

Yes, But the lower their income is, the less they spam.
If there is no income and there is no benefit in spamming, they will leave the forum. They are here only to join campaigns, spam and earn money.

If Theymos decides to make changes, I don't think he announces anything before that.

There is no doubt the merit system is more in favor of old members. Now they are benefiting because they knew the forum earlier.  I expect this to be finally changed (I don't think it happens in near future). I don't think 5 years later, some users have a special privilege only because they registered earlier. Theymos will decide. All airdropped merits may be removed in a second, they might be decayed over a year or there will be a complicated formula.

Anyway, now thanks to signature campaign managers, there isn't a big problem. A legendary member who hasn't earn any merit is not qualified for participating in a good signature campaign while there are users with member and full member ranks that are participating in good campaigns.  There are many legendary members that are wasting their time in altcoin bounties without any income. Now having an account with a higher rank doesn't increase your chance of participating in campaigns.

Those who wager in the last minutes try to win the contest with the minimum wagering amount needed. They usually wager a little more than the second place.
In the previous contest, the winner has wagered 125 BTC. The purpose of that gambler wasn't only winning the contest. He had likely wagered that amount during 24 hours.

Perhaps evil points can help us.
After all of these accounts are banned, the evil points of IP (or IPs) associated with these accounts will increase significantly. Then they will have to pay for registering new accounts. 

And this number is increasing very fast.
113 out of last 500 created accounts have made a post in this thread.

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All links to profiles of those spammers should be edited. They are now not working.
Add ":" after https

Do not expect the OP of that thread to get banned. The OP can only get negative trust. There have been many ANN thread with fake volume. I have seen some thread that were deleted. But usually, they are not trashed.

Anyone loves this game know nothing about odds, winning chance, house edge, etc.

Assume that the odds for gold coin is 36x,
In this case we should have 37 coins, 18 of coins should be red, 16 of them should be silver and one coin should be gold. If so, the house would be:

HE(If the odds for gold is 36x)=1-((1/37)*36)=0.027

So, if there are 37 coins, the house edge is 2.7% while in a game with 15 coins, the house edge is 6.7%
I cannot understand why users should prefer 15 coins to 37 coins.

As I said, only those who know nothing about house edge love your game.

Requiring participants to have certain number of merits was the best thing you could do and you did it. There should be a requirement, a minimum post count, a minimum activity or minimum merits. I think minimum merits is the best option and I personally cannot find a better solution.

As you said, there are some competitions in "games and round" board. Some owners don't bother themselves to make a rule. Some of them say that using multiple accounts are not allowed, but actually they do nothing to fight multiple accounts. Most of those competitions are due to promotion and advertising purposes and owners don't have any issue with multiple accounts. Because multiple accounts help their thread be more active and this is exactly what they want. But your giveaway is different from them. You are paying the reward with your own money, want to have a fair competition and have to make a rule to avoid cheaters.

The "submit" button when reporting a post navigates the user to the board that contains that post.
In my opinion, it would be more convenient if that button navigate the user to the post that was reported.

Sometimes, while I am reading posts in a thread, I decide to report a post. Reporting the post causes me to leave the thread and I have to find the thread again.
Sometimes I want to report two consecutive posts. After I report the first one and I open the thread again, I forget which post I reported.

I know the solution is very simple and I can open the report page in a new tab. But most of the times I forget that. I can also use  "back" button after reporting. Despite of these, I think it would be better and more convenient if the report button navigates the user to the reported post not to the board contains the post. At least, it can save more time.

I couldn't find anything about the chance of winning, the house edge and procedure of determining the winning color in roulette

But there are 15 coins. 7 of coins are red, 7 of coins are silver and one coin is gold.

So the winning chance should be:

Red and silver: 7/15
Gold: 1/15

The house edge can be calculated as follows:

If red and silver coins are considered:
HE=1-((7/15)*2))=0.067

If the gold coin is considered:
HE=1-((1/15)*14))=0.067

So, the house edge is 6.7%

Why should play a game with 6.7% house edge?

Seems that you misunderstood the OP.
The issue is that the post count is higher than number of posts made.

Obviously, it's a bug. Now, at the time I am making in this post, there are 2257 posts in your post history while your post count is 2259.
 

Here is what Theymos says:

You can check number of received merits in BPIP or Loyce.club.  Then it's easy to understand how that user has achieved that rank.  

Example:
According to Loyce.club, you have received 290 merits until December 13, 2019. Also, according to your Merit summary, you have received 7 merits after December 13. So, you have received 297 merits totally. As, you have 307 merits, you have 10 airdropped merits.
You have ranked up from a member to a senior member.  

I am sure there are still some errors in creation dates of local boards.
Given Ids, there is no doubt German board has been created after French board. Spanish board has been also created after French board.
Compare Ids of Polski and Greek boards. Their birthday in your list are 20/5/2013 and 30/5/2013 while their Ids are 142 and 120 respectively.
There should be some other errors too. 

There is no problem with Ethereums and tokens that had been deposited in Myetherwallet before. You can still access your wallet by your private keys.
Any way, I agree that having the private key is really needed.

I just checked "Development & Technical Discussion" board.
Currently, number of threads that are related to lightening network are even lower than the time malevolent had made that post. So, such a sub-board won't be created in the near future.