As far as I'm aware IW got himself banned for posting racist comments. He admitted it himself, though he conveniently couldnt recall what he actually said!!??
However I do know exactly who reported him to abuse - and it wasnt just one person!!
Rascist comments are taken more seriously than simple abuse (eg swearing etc), especially when BB's are not moderated by the provider.
Not sure Im comfortable with the idea of him looking after my investment though...