Posting has been slow for me, too. Whenever I had to post in the last month or so, I had to hit Submit about 10 times before a post was accepted.
Unrealted to the forums, I see the NPW auto-refresh feature isn't working properly. It shows the current track, and beings to refresh when it has to but never completes it. I have to manually refresh it. And if kept unattended for a long time, it comes up with a Server not Found message.
(I have it in a sidebar, btw, not in a separate window or inside a media player)
EDIT: No problem posting this message.