It's not the bike that tweaks me.... it's the rider/owner, and the extent some go to be part of their little clique. If I see a guy, pants rolled up, t-shirt, fixed and cruising downtown... nice bike!
If I see a guy, pants super-tight, rolled up, ****ty american apparel shirt, ascot or hankerchief, mutton chops connected to a mustache, vintage cycling cap, no helmut, practicing "bmx tricks", well... he looks like a tool and a riding cliche.
Same with other bikes though, roadie in spandex, no biggie. Roadie in full on super-pro gear, shaved legs, riding a $5000 bike while cruising at slow-pokey 15mph at a park? tool. If you want to ride like your on The Tour, head outside the city and but out a 100 miles at 20+ mph.
Anyway.... I'm sure I look like an idiot to tons of people I pass. I'm sure we all look like idiots to someone.