Just what @furious-one said. This only applies to really new posts. So if your post is under 15 minutes old, we will vote at 15 minutes. For example if you use MB at 13 minutes, we will wait 2 minutes to vote. If you use at 17 minutes, it will happen instant.
And just to add, this will not affect us not needing recovery periods :) It is just a policy to be fairer with the rewards.