I also believe that the old system is hopelessly outdated. There's no need for a lengthy official approval process – I'll simply write about it to the Creator. Then, I think he'll just take a look at this thread, be pleased, and give you his blessing)) And after that, Vip, you can do whatever you want: you can create a new thread with a new ranking, and we'll pin it as important; you can merge it with the existing one, and then you can make new edits to the post with your ranking; or you can apply to become a moderator in this section in the appropriate thread, and then you can manage all the ranking matters as you wish.
Waiting for the blessing)
This thread is for discussion, so I'll create a new one where I'll outline the ranking calculation scheme and keep it updated.
Let Kirill moderate it (if he doesn't mind).
Then, after the official approval of the scheme, we'll decide what data is needed and in what format to calculate the old ranking.
Or maybe Kirill will reconsider and cool down about the old ranking, because there's no point in calculating it, as the new scheme will clearly rank everyone according to their current level of play in the next 2-3 tournaments