Surely this makes it very tough for a non-trolling user to figure out what was wrong with his post? Few people are going to explain it to him. You need to be familiar with LW jargon before you can expect to write a technical comment and not be downvoted for it, so this would very easily deter a lot of new users. "These guys all downvoted my post and nobody will explain it to me. Jerks. I'll stick to rationalwiki."