Problems and bugs in Tournament themes.

I disagree. The idea itself is good, but it's not feasible. There may be situations where players leave and their nicknames disappear in the present. A person may return after a year or two with their name and won't care about past games.

Well, it doesn't depend on your agreement or disagreement. Our seasonal rules include mandatory confirmation. This was adopted after a long discussion and cannot be canceled by your single vote.
And for нестандартных and rare cases, I suggested that a system for canceling reports should be provided, and it should be possible for judges (or moderators) to do this.
We can also consider the possibility of "burning" unconfirmed reports, for example, after six months.

Regarding changing the rating calculation system. In the 2 years that I have been running the rating, people periodically appear who want to change the system and offer formulas. I have calculated it using other formulas several times, and there has never been any improvement compared to the existing system.
I've probably written this ten times, I'll repeat what I said:

If you, [insert the appropriate nickname], want to change the way the rating is calculated, then your algorithm should be as follows:
- clearly think about what you want to propose;
- write formulas suitable for programming;
- program it yourself or find a programmer;
- suggest that the forum discuss your system;
- calculate using this system for a couple of seasons, get specific results;
- conduct a vote - what is better - your system or the one that exists now.
And only then, if your system is liked by the forum, it will be the official formula.

Introducing coefficients for tournament games is essentially incorrect. This will not solve the problem:

it will increase the difficulty of winning a season by defeating average and newbie players.

On the contrary. Nothing will change for those who were defeating newbies in the season, but in a tournament, not only will more be added, but more will also be subtracted for a loss. A loss (especially to someone lower in the ranking) will push the player so far down that it will be to the advantage of those who don't play in tournaments. You should at least analyze the current formulas first.
And I completely don't understand how the game of GoD - Gomunguls in the season fundamentally differs from their game in HWC or FB? Why should the value of a victory and a loss between two opponents in different tournaments differ by a factor of several times? We still have players who count one game in several tournaments... It will be interesting if the coefficient is 1 in one tournament and 2 in another...

The current calculation system was not taken out of thin air; it is a strict mathematical construction, carefully considered and tested.

normal coefficients can be found by trial and error.

Rom, I'm sorry, but that's not mathematics.
If there is a desire, then first you need to experiment for six months, search, and make sure that it will be better (based on my experience working with the rating, I see that it will not be better), i.e., it is necessary to prove this with numbers, and not with vague words, and only then introduce it as a system on the forum. So far, there are only completely unsubstantiated and highly controversial statements...