When I go to my profile, click on 'Find My Content' and then sort it by 'view all posts by Povuholo' the last posts it shows are from May 26th. Same for all other members. Has anyone else noticed this?

Yep, I've been getting the same thing. And searches don't show anything more recent than that either. It may be related the avatar bug that's being worked on.

But if you click on the posts tab next to your status tab, they show up...Odd.

Yep, there is a forum software bug at the moment. It was first mentioned http://www.gamesas.com/index.php?/topic/1195175-attn-avatar-uploads-temporarily-disabled/ but it would seem other functions are also effected. It will no doubt be sorted in due course.