Another shameful phenomenon:
5nak/Gunda - They are very good players (are pretty mean people though), but they recently put fake realistic looking player stats into their bios to try to reel in not as good players for cheap wins.
I believe that this is actually where shame ends. :P
They both just refuse to play good opponents
I joined several 1vs1 / 2vs2 as opponent they created ... and guess what? All the games were deleted.