Non insightful, bland comments with just enough information in them to make them upvote worthy. especially tl;drs, links to previous threads on the same link, and so on. These annoy me, as someone who likes to actually read the links, and find many of the highest ranked tl;drs somewhat bad.
I propose: a stackoverflow style community wiki on every thread. http://i54.tinypic.com/35n1nag.png
This way we don't have to read the obvious, or read the a summary about the article we just read. But meanwhile people who enjoy tldrs can still get them.
Jokes: 99% of the time I feel the tech jokes are really obvious+lame. Like the one comparing the NASA leak to wikileaks.
I propose: a 'joke' flag. When viewing a comment, the comment author or others can flag a comment as a joke. That comment thread will then disappear from view of those who deactivates jokes in their account settings.
Any thoughts?