Yes, hmmmm.... Interesting. I do see these are older posts now (as I follow the links), but have not come across them before.
My normal practice is to log into the forums and click on "View new posts". Generally, this shows me anything new that has been posted since my last visit. This time, your 2 posts above were the only new posts I saw, for instance.
When a post is reported, it does not seem to send an e-mail. I've not normally logged into the Moderator Control Panel to check for reports, since I would expect to see any new posts and the fact that they've been reported as I log in.
Guess I need to modify my methodology. Thanks for bringing this issue to our attention.
I have banned the users and deleted the problem posts.