When I try to post from chrome (21.0.1180.75) or Firefox (14.0.1) from my linux laptop, the AJAX POST times out. Trying from my android over the same network works. All other websites I visit work just fine, this issue is isolated to this forum.
When logged in, normal GET requests occasionally time out too.
Not sure if relevant.
I'll just use a proxy (or my phone) for now when I want to post here. Sucks, but works.