A small number of overzealous Lin-fans could indeed become annoying on clutchfans. But every forum has annoying posters. People usually just ignore them. You have to feel strongly about those Lin-fans and about Lin to keep attacking those fans -- Clutch used to be one of those people. It is still understandable.
What's hard to understand is for a Chinese to be obsessed with attacking overzealous Chinese Lin-fans on a Chinese forum like TT, just like those long-time Rockets fans (mostly non-Asians) were on clutchfans.
As LZ observed, more and more Rockets fans on clutchfans become accustomed to Lin being a legitmate Rockets star.