you commented on the compression, but didnt help in any way, or suggest an alternative. saying something is wrong is not constructive. also, it was clear that this guy was trying to colour correct well, not in a pretentious 'its so bad its good' kind of way, so dont try and claim you thought otherwise. you of all people should be helping, as this is your field of expertise, next time think a little more about what you say, rather than being so malicious.
the reason i pick you up on it, is because i see it quite often. you often make disparaging remarks that are completely useless. i dont need calming down, but i just think that you should be more considerate, more often.