This has been asked before in reference to badges but not about tags.
I asked a question a while back on Server Fault, and it turned out to be a facepalm-style problem (and solution). While it could technically be closed as "a simple typographical error", it has received many views and a few actual votes.
Is there any usefulness (or maybe playfulness?) in adding a "facepalm" tag, or would that more likely be abused to ridicule a question (or the person asking the question) rather than the typical downvote (or vote-to-close)?