the people who have two accounts but are not cheating

Yep, i think previous posters have addressed this well. (Speaking of non-trolls, @KeSetoKaiba is amazing )

I'm confused; d4 was banned for violating fair play, and given the very odd rating stats, it was probably for cheating. Not sure how that relates to trolling. Trolls that are banned would be banned for abuse.

I'm confused; d4 was banned for violating fair play, and given the very odd rating stats, it was probably for cheating. Not sure how that relates to trolling. Trolls that are banned would be banned for abuse.
I think he was banned for too many timeouts
You sure? I see a ton of timeouts on the front page, which is normal for banned accounts because they can't log in so all their dailies time out