I just posted this in another thread, but I figured I'd post it here for whatever reason.
If you want the forums to consist of higher-quality discussion, make higher-quality discussion in your posts.
If you want the forums to be more friendly and less hostile, be more friendly and less hostile in your posts.
If you want the forums to be more positive, don't focus on negative things in your posts.
If you want the forums to be more topical, be more topical in your posts.
If you want the forums to be a haven for elitist snobs who look down on anyone who thinks Metal Slug 2's Japanese insert actually looks better than its US insert, or who ream newbies for asking beginner questions, then act accordingly. But you'll be helping kill off the forums if you do.
If you want the forums to consist of higher-quality discussion, make higher-quality discussion in your posts.
If you want the forums to be more friendly and less hostile, be more friendly and less hostile in your posts.
If you want the forums to be more positive, don't focus on negative things in your posts.
If you want the forums to be more topical, be more topical in your posts.
If you want the forums to be a haven for elitist snobs who look down on anyone who thinks Metal Slug 2's Japanese insert actually looks better than its US insert, or who ream newbies for asking beginner questions, then act accordingly. But you'll be helping kill off the forums if you do.

