Why we never see someone coming to the forum with the announcement:

"this guy is a great person that always let me win playing with 2* teams and accepting all my negotiations offers just offering money."

xD

Well, retutning to the topic as the companions said, to accuse, evidences should exist, these have to have a argument and a minimum of basis, like if someone accuse us or yourself... one can not come here and writte publicly accusations and our names as players.
That's why there's a support channel with a team that investigates these cases with the needed privacity.