There are a lot of other threads where people complain about the type of comments they get. It's scary territory.
A. Some people complain that the comment is "Wow! Pretty" because they want details of WHY the commenter liked it.
B. Some people complain because the comments seem mean and they don't want any criticism if it isn't nice.
C. Some people complain because all of the comments are "demands" (meaning not even saying Please) for instructions on how the cake was done.
...and the list goes on and on and on...
This is a very slippery slope in my humble opinion. But Good Luck
Personally, I have never posted any cake pics in the gallery, because:
(a) Criticism won't change anything about a finished cake.
(b) I don't need the validation. I do what I do (all buttercream, no fondant), I'm happy with it and so are the people who order cakes from me.
(c) I have a website and the button is there in my posts for anyone who would like to look at my work. Posting pics in the gallery here seems like a duplication and a lot of work, especially with the difficulty lately posting any pics at all here on CC.