i know meanwhile that one comment was not "nice" - but many other critiques got deleted and i got called idiot meanwhile because i said what i think about some photos. you cannot give always constructive critique, but you can point flaws in a photo, yes or no ? for example, there is a photo of a boat, sky is washed out, water is overexposed, subject is boring - how to give "constructive criticism" then ? its surely impossible to give lessons - that people always expect EXCELLENT is sad, this way they will never look at their photos with open eyes ...

what a fine productive answer, wonder how long you thought about it before you found the "right words" ...