Sir, I certainly hope this will not be taken as being overly critical. However the change as I understand it will mean that if a new user writes a single comment that is unpopular or simply gets missed, he will forever be banned from commenting again. This is unworkable because it will mean many people will be banned just by virtue of their comment being missed, or by making a mistake and saying something that isn't appreciated by whatever senior members happen upon it.
The previous thread said that pending comments will expire after 24 hours of non-acceptance (releasing their lock), and can also be deleted at any time while in the pending state (which also releases the lock.)
While I don't speak for others who will moderate, there is a difference between being unpopular and being a poor comment. I have no issue encouraging good content that I disagree with. However, all too often people confuse having an unpopular opinion and being rude. They'll get down voted because they are not being civil, and they also happen to have an unpopular opinion. They will then point to that comment and claim they are being silenced by the majority (they will do this in another comment, which will also get down voted for good reason).