Let me rephrase that.
How do I report Multiplayer accounts in a way that moderators actually take notice and action?
If any moderators/those with actual power are reading...
Please look at Game 4510894. There are lots of fake accounts/multiplay still rolling, even though I have submitted bug reports.
I came back because you restored Legacy Mode. But if you don't fix this problem then there is no point in continuing to play.