Sometimes I answer questions that are kind of OK, neither bad enough to downvote, nor good enough to upvote (although they probably could become good ones with edits).
Per answers to Should I upvote "bad" questions? seems that I'm doing the right thing. But on the other hand comments to my recent question here Are people shy to use upvotes? suggest, that I shouldn't expect answers to be accepted or upvoted if I "don't participate" by upvoting the question.
Should I really upvote the question just because I think it's worth my time to answer it?