SpectateSwamp filled all the criteria for being a
crank/crackpot, just check the "Common characteristics..." section, he's a perfect match. His persistence and activity elsewhere on the web shoots down any notion he was some kind of elaborate troll.
He was banned because he wasn't contributing to the forum in any meaningful way and used it solely as a megaphone to pitch his 'product', his postings often caused massive flare-ups too. He also wouldn't have been gaining anything personally from being allowed
to post either, besides making everyone think even less of him as time goes by.
Moderators don't just ban people because they're bringing their forums into disrepute, but also at times to protect people from themselves (for example, under-matured people who are foolish enough to sign their real-names to massively misinformed or overly-charged
forum posts; those posts will only be a liability in future and it's in their interests that they are prevented from digging an even deeper hole for themselves. I won't name names, but there's been a few people like that on here before).
Turrican: you'll notice this forum is owned by Microsoft and is meant for
positive discussion that leads to insightful and informed debates; Bizarre behaviour has no place here. If you miss him just go and google for him, he's an active poster elsewhere, and there's also more than enough people willing to pick through everything
he's ever done for their own personal amusement. I, and most people here, hold themselves to higher standards than that.