I have to agree. Commenting on queries is an area where (I assume) the majority are less confident in, and could be more reluctant to comment. This is especially so for me, I've sent queries, but I don't think they are good; but I don't blame the query note for my book not been accepted, brobably my book isn't to the right standard or haven't chosen the right publishing house. I think when I have attained a level of success, then I would love to help, but am not ready and respect other members thinking similar thoughts.
What I would encourage is all members to give feedback to stories and poems (haven't done so myself yet), because, in my view, it doesn't matter if it's 'wrong', because my comment on a story can only help me to develop my skills as a writer and a reviewer. Even if I think I am wrong because another member has a different opinion, fine. I use this feedback to understand what the difference of opinions are. I've also found upon further review that I have sometimes been wrong, and other times, right! It's a great learning experience and can highly recommend considering this to improve your own work.
When I critique, I aim to be as honest and direct as possible. Don't worry about 'hurting' or 'offending' the author who's asked for help, it's really what they want, even if their ego is a little dented. I always go to the people who are brutal and love them for it. I don't critique as much as I would like, even privately, because of time, but I'm using my time to review and want to make the most of my valuable time effectively for both parties.
Everyone has a choice, no-one forces anyone to do anything here, but why not make the most of this wonderful opportunity to critique...
Jakey