I am constantly clicking on the ignore user, but there is some computer system out there that is signing up for usernames and just keeps posting, it is seriously obnoxious
You have to click "report abuse" then submit it as spam. If more than three or four of us do that the yahoo bot will delete the post. It may be more difficult with the star ratings though, that is why they rate it, so that it is harder to delete.
meh... They might delete that one spammer, but then 10 will take its place. I just ignore them.
See how they are keeping it on top, pushing real posts down the list?