I think we should encourage commenting at all costs. The karma system can handle not showing you the uninteresting/bad ones. Actually, now that I think about i

I think we should encourage commenting at all costs. The karma system can handle not showing you the uninteresting/bad ones. Actually, now that I think about it, the karma system could be the reason people don't post as many comments. If you submit, you're looking at all upside. But you can hurt yourself by saying something dumb, so people opt to say nothing at all.