On this question I put a helpful comment linking to Meta's faq about accepting answers. I went to look this morning and the comment is no where to be found though
The comments part of the question where I posted it:
but in my recent activity:
The comment is there – the only thing missing is the "get more comments" link. That occurs sometimes, because the comment count on posts is denormalized. When the wrong number of comments is recorded for the post, it can happen (like in this case) that you don't get the link to retrieve more comments, even though there are such.
IIRC, there's a cron job running to look through things like this, so it will probably be fixed within 24 hours.