I'm kind of biased against responding to certain posters posts here:
If it is AN, the topics are typically to do with trivia which is sometimes interesting, but at other times just drops to the level of inanity or just completely has nothing even remotely to do with SCs. So I might make one follow up if it is interesting trivia, but typical the topics aren't that interesting.
For shadowcat, his typical post is "how to get cheaper extras" or "I am the man because a brand new stripper gave me a HJ after I was her regular for six months". I will post once to make fun of him and that is usually about it.
As for FONDL, well sometimes he posts interesting topics, although his take on things is definitely the pussy-boy approach. But the subjects are at least more usually more interesting and relevent than AN or shadowcat, even though I am almost never agree with his slant.
Most FONDL threads ultimately end up degenerating to him pining about his ATF. Also he starts many threads which are him pining about his ATF right from the beginning. (Might as well get it out of the way right from the start, right?)
RL definitely starts the most interesting threads here, although some of his questions are repeats of the same thing, so I may not bother answering if I have recently answered a very similar thread.