dude there will be no more stats reset after new bot release, if pros are banned they will not get much points if they join noob games with new account (if we dont catch them before they even come with their new account).
To be more easier for you to understand.
You host a game AP // eu // noobs you are in that game and you have 300 points rating,
kingw3 rate 300
I join the game and I have 1500 points rating
mrniceguy rate 1500.
So it will be like this.
sentinel
kingw3 rate 300
player rate 400
player rate 600
payer rate 700
player rate 500
scourge
mrniceguy rate 1500
player rate 1000
player rate 1300
plqyer rate 1200
player rate 2000
If scourge win they will get like 10 points each or mybe even less, they will get 2 points, but if you win you will get 30 points or even much more.
So they need to play like 100 noob games to get like 20 points, and while playing them they are risking to lose a big amount of points.
So why do you think if I consider myself as a pro, that I will join noob game and risk to lose many points in 1 game only?
I hope I was helpful, if not then I can try to explain on example tomorrow.