contour.org
One kid was dumping loads of money into his 4 cylinder Mercury Mystique (stupid stuff like side skirts and a spoiler from an Alero, etc.) and talking about how awesome it was that he could chirp 3rd gear and posted time slips showing him running 18s in the quarter mile and posting pictures of his "car club" that consisted of him, a Saturn something, an old Grand Am, etc.
I let him have it. Apparently two counts of "defying moderation" gets you perma-banned.
I re-registered under another name and stayed under the radar for a while until someone posted about his badass new V-Rod, at which point I congratulated him on being an idiot (in so many words). Then they figured out who I was.