as of 3 minutes ago the post in question is still comment locked, so i'm not sure what you mean by it was reinstated.
as someone who also recently created a rant post (i self deleted it after i calmed down and realized it wasn't very productive) I can fully sympathise with those who feel anger or frustration with the current state of the game and i fail to see how censoring people's expression of those feelings are going to result in a positive outcome.
these expressions of anger or "rants" as you call them are the direct result of the current state of the game and as such will drop into the negative and rise into the positive depending on the current consensus of opinion on the game.
in the same way you wouldn't attack or berate someone experiencing depression or sadness, as it would simply result in a deepening of those negative emotions, banning or censoring someone because they expressed their discontent would only serve to deepen those feelings of ang...