Well I left /b/ in early 2006 to go to /v/... And I saw it in effect over the course of 2 years there. That's exactly what happened to /v/, it was slippery slope syndrome in practical effect. Gradually more tripfags, gradually more OPs girlfriend threads, gradually more 'IF U DONT LIKE IT DEAL W/ IT' female attention whoring anons... Anyone who was on /v/ over that time period can testify to that effect.
And it's not *all* tripfags either, I'm not one of those faggot anons that hates someone because they have a trip, I liked Cirno, hell I even liked TonberryKing and Guriin a little bit.
Back in the day, a tripfag went through a kind of hazing ritual over a few weeks, either they just took the trip off or they accepted it and moved on and were gradually accepted or ignored, in which case they took it off, but only later.
Fuck even the TROLLS were better back then, WingedSamurai for example or 666sephiroth666.