Posting on here shouldn't be like writing a ten page essay or something.
Different people post on boards for different reasons.
Personally, I just come here to shoot the breeze, throw out a couple of gags, and basically pass an idle 10 minutes or so here and there.
Others genuinely seem to enjoy debating/arguing and/or discussing stuff in a lot of detail or to build deeper friendships with others here. I don't really do that, but I guess it must be irritating to these groups of folks that people like me basically just skim the topics and posts unless something grabs the eye.
Different ways of using the medium, really.
Oh I agree. How people spend their time on here is totally up to them. I think I'm the same as you. If I get into a debate, fine, but I mostly just post on here as fun and try to build friendships along the way.
However, because time is short, if there is a post that is long winded where you have quote/reply/quote/reply for like 10 things, that is something I probably will skip over. If it takes 10 minutes to read a post like that, than that's not fun, at least in my opinion, unless it's really really interesting. If that's what people want to get out of being here, I've got nothing wrong with that.