Just to explain a bit. The 4 minutes wait time means you cannot post within 4 minutes of your previous post. Or at least that is what it is supposed to do.
The idea is to slow down people firing fast a number of replies. So for instance two people arguing will have to wait 4 minutes before they can post again. The developers of the forum software think this is a good idea to get people to think more before posting in very fast moving topics.
It is set to expire in 10 hours and I will let it go for this time period and people can express their view/opinions/criticisms in the New Feature - Slow mode topic. Please comment if you have a view, feed back is key to help us know when or if we ever use it.