Saying a UI is difficult to use, doesn't adhere to convention, &c, even saying it may not look sexy/ggod/æsthetic for a reason is one thing. Chiding the author

Saying a UI is difficult to use, doesn't adhere to convention, &c, even saying it may not look sexy/ggod/æsthetic for a reason is one thing. Chiding the author for a "Win95" look is just childish.