Negative post count

From right here within the Bug Reporting board:

It says that topic has 45 views and -1 posts!

That's because threads with 0 replies have a 0 post count. The OP's message was deleted, so I guess that set the post count back by one.

Users didn't use to be able to delete their own post when that post was the first one in a topic. Looks like that is no longer the case, at least for now.