Both are judgemental, actually. That doesn't mean they shouldn't be heard. Non-violent communication skills will tell you pokesmot is probably blaming brc for his own feelings about smoking weed. I'm implying he smokes from his username.
What is the evidence pokesmot is blaming himself? Notice he is "quoting" brc using the quote symbols, but brc didn't actually say what is quoted. NVC will teach you to read things like this as a feeling/opinion held by the person who is "quoting" someone else. When you are saying something contentious, you are are either blaming yourself or you are blaming the other guy. Given brc didn't actually say what pokesmot said he said, I'm going with the former: he's blaming himself a bit. This leads me to thinking it's not beyond us to consider we might feel a bit of fear ourselves if we consumed more than a moderate amount of pot in a given week and then someone comes by and said "don't kid yourself it's making you better at work".
Ironically that last quote is also a blaming statement. The logical implication of that statement is, if I smoke weed, I won't be better at my job, especially if I do it regularly. The won't is derived from the negative fragment 'kid yourself'.
Anyway, I agree with both of them! Don't smoke weed with the expectations of becoming better at work. Making casual blaming statements affects all of us. We should all try harder not to do it!