That's precisely my point, but many people seem to feel inhibited due to guilt or fear of judgement. I do post long posts anyway, and people seem to read them regardless of their length.

But other people seem afraid to, and that bothers me. Also, when people are constantly apologizing for it, they are inadvertently reinforcing the belief that it is somehow "not okay" to do so. That they are doing something "wrong," and that gives the impression that anyone else who exceeds the three sentence limit is wrong too.