So,we can stop their farming by not making their win count if they change the game rules.The way I see it a person could farm either by using several accounts,and I think those are easily caught is in they have the same IPs.Or,he would be farming with other online accounts ...in that case I also think there are ways to catch them if they are farming qi.But,what if for example one account is losing repetitively to another player on purpose.To this account it wouldn't mean much because he's using an alt that he doesn't give a fuck about.But,the other is having an abnormally good global rank.Maybe we can try and detect continuous losses for two people playing in one server...and investigate in the thing if it reaches an abnormal level.
Now,I don't really care that much about ranks ,although it's a great new feature(hey you can't complain).I'm just thinking that it might not lead to a fair representation of the actual results.