With the update to the forum, we now have a "Ban Author" option at the top right of a post. While I see this can be useful, I tried it out today on a spam post, and I think it gives too much power to a non-admin user. I was able to ban the author of the spam post for 180 days by simply clicking "Ban Author", selecting a length of time, and adding a brief description of why they were being banned.
This could easily be used by someone to cause lots of issues on the message board.
If it is to remain, it should at least be converted to a "Report Post" button instead, where the post is flagged and sent to an admin for review.