Post History

We've resisted adding voting to comments because, to be fair, you have to have votes in both directions and that starts to get cluttered, but I also recognize the need for an efficient "me too".  Nobody wants to read a bunch of comments saying "I agree with so-and-so", after all, but people want to be able to signal that agreement.

I once proposed a more explicit "me too" feature for comments: rather than an anonymous upvote, a user would be able to "co-sign" a comment.  Unlike the anonymous votes you see on Reddit, Hacker News, or SE, these would be signed ("posted by X; also supported by Y and Z" or the like).  I don't remember now whether there was some problem with doing this or if it's still waiting in the to-do list; I'll try to check later and update this post.

We don't need the corresponding disagree/downvote option: if you disagree, you can leave a comment explaining why.