In case anyone still has any lingering doubts about whether it was right to ban Wik...
If he's only willing to contribute on his own terms, and if he reacts to a "time-out" by running a computer program that automatically vandalizes our encyclopedia database,
... THEN it's fairly obvious that he never had a congenial purpose in mind. He was like those people who post whatever they want to newsgroups or blogs. And if others object they just say "Nyaah nyaah, can't stop me!"
Now of course when Bilbo was trying to rescue the dwarves from Giant Spiders in "The Hobbit", he did a bit of taunting and teasing. There's a place for everything, I guess. But the spiders had waylaid the travelers and intended to eat them; a far cry from the, er, ecology of Wikipedia.
Uncle Ed