YES. He has done something wrong. Let me explain,
If he wants to say the comments were stupid, he should. Infact, I agree the comments were stupid. What is wrong though, is that there was a hint of abusing his powers.
"Please refrain from posting stupid and groundless replies or they will be deleted."
It's the "or they will be deleted" that is a clear abuse of power. Because a mod thinks something is stupid does not entitle them the discretionary powers to delete messages. It is NOT part of his job to delete posts he personally doesnt agree with. Thats censorhsip. A police officer can tell you to not speed, but he CANNOT tell you he'll blow up your car for speeding.
I think ALL members will agree, Storm is a vital member. Unfortunately, his leaving has made him a scape goat for the behaviour of OTHER moderators aswell. I've said it before, and I'l say it again. Storm is the only moderator here who behaves himself. While the other moderators hide behind bushes, secretly deleting posts, Storm is alone in actually admitting what he does.And it's because he has the balls to honest that some people end up in a yelling match with him, and not the moderators who thrive off the powers of being a mod. Alot of times the poor guy takes alot of crap for the heavy handedness of other moderators.