I would much rather see tags than an upvote/downvote.

Some people downvote all jokes, others downvote opinions they disagree with, others downvote misinformation. It's a very ambiguous signal with little value.

Slashdot had it right very early on with the various tags (insightful, funny, interesting) but also gets it wrong by allowing only a very small percentage of the user-base apply those tags. Tags like misinformation, and agree/disagree would allow more nuanced and better filtering options.