This could always be a problem. Well, I mean, if you're writing a lot of big posts and the other person is writing one-liners, then wouldn't you resent the situation? Anyway, in my case, I'm trying to get into the habit of making a few huge posts to balance out posts that are small or medium. Well, I like some posts to be medium and small to make things seem natural. For instance, if I was just on a forum and there was no obligation involved, I would just type naturally, not paying attention to the length.