Was it in Site Announcements? Because I came here to say that the past two times I've tried to post in there, it gives me the "you can't post twice in more than 30s" warning. So I go to the thread, and sure enough, my post did indeed go through. I first noticed it yesterday, and then it happened...
Got this today:
When trying to do an advanced search in a thread. The search worked fine, but still got that message. I've gotten something like it a few times, recently, but this is the first time it occurred to me to save it and report it. Derp. Sorry.
Using chrome and Win 7. Let me know if...