As of a few hours ago, when I submit a reply to a thread, I'm not sent to the page that says my post is being posted, blah blah that then returns me to the thread. I hit submit and nothing happens. It took a couple of double posts before I realized what was going on.
The redirect works fine if I edit a post, though.
Edit: It also happened when creating this thread.
Edit 2: Ok, sometimes is displays the "cannot post so soon" message. I only hit submit once and it takes me there. I go back out to the thread and find my message was posted.
Methinks your school is hypercaching the forums. That or your client is. Some people get this error occasionally, but never to this magnitude or frequency.
Posts
I believe it was a problem with my browser, as I'm home now and it's no longer happening.
Clear the cache and set the cache max memory to 0