OTN Forum DOS Restriction?

I don’t know if it is a fresh implemented feature, but if you enter your answers / replies to threads in the OTN to quickly you now get a small warning button that says that you are not allowed to enter a new reply within 30 seconds… This happened to me the other night while trying to reply to some questions, because the forum is sometimes very slow, I opened two browser windows and save both replies apparently within this time period.