There is a bunch of stuff broken at present on concrete5.org. Anything that uses the underlying forum mechanism has the same ajax failure. This affects support requests and PRB reviews.
Marketplace submission approval is also suffering a similar issue, where approval happens, but the ajax acknowledgement breaks.
Notifications of posts are also failing, so remember to check your PMs and Support area regularly, or you could miss a post.

Bump.

This appears to be fixed now.

Posting works, but is anyone getting notifications?

I am, but very slow.

I haven't seen a notification off a forum post in MONTHS :l
Monitoring.....

Edit: Ajax post is working again!

Just to let everyone know that notifications of forum responses, private messages and support requests are still broken.

humph.. thought we got this working. We'll take another look

Sorry for resurrecting this thread, but this is still an issue, I am not getting any initial support request notifications, but I am getting notified of any replies.