There is nothing wrong with negative comments or feedback it would be a strange world indeed if we went around only reacting to positive comments.
I quite often give and receive negative feedback and comment withing Hub, questions and the Forum, as long as it is constructive and you can help where is the harm.
What is wrong is destructive comments and feedback, there is no call for anybody to be rude insulting or abusive.
We cannot agree on everything and sometimes the most constructive thing you can do is say nothing !
Least said Etc...Etc...