What I often see is questions that gets answered where the asker of the question says "thank you this was exactly what I was looking for" in the comments but forgets to mark the answer as accepted/doesn't vote up.
I don't want to be a beggar so I won't beg for it in comments, I see other people ask for accepting the question.
What should you do in such a situation? Where the asker clearly accepted an answer but didn't "accept it".
Should a moderator come in and tag the answer as answered?