LRC lives on because of the reasons the others fail: they don't really change anything. There's a fair amount of regulars, and by the Brojos not changing anything they create an atmosphere where people feel more connected to the place, rather than disconnected due to a website changing things all the time. Perhaps it's a little bit of nostalgia. A comforting constant to keep revising in world of change. In any case, they have a definite brand caused by the retro feel/logo.
They do all their own reporting, and although people laugh at the grammar and unprofessional production (they've got better), many people here feel like they know them and enjoy it when LRC is on the scene at an event.
Young runners hear about LRC as this legendary place where there's a rough message board; just like Pre, the legend grows bigger than it ever was. They come on and continue a tradition that has become a self-perpetuating myth. And so it continues.