wanted to bring up something interesting that happened to a guy I know that plays.
Now the guy started playing about the same time as me, he went from about 3200-3600 mmr regularly and couldn't seem to raise his mmr (i'm at roughly the same ranges) so he decided to make a smurf and see what mmr he can get, the result: 4200 mmr
I thought he might be spamming certain heroes, but that doesn't seem to be the case, what do you guys think it says about the mmr system? he has about 200 games on the account so you cant credit try harding for a short number of games,
here is the smurf account on dota buff:
http://www.dotabuff.com/players/218464051/matches