Read this:
So here are some ideas for improving theater writing in America:
1) Recognize that the relationship between artist and reviewer is one of exploitation. I think it would be harder for reviewers to be snarky if they remembered that it was the bad play they saw that is putting food on their table, or that they get paid more than I do to trash my work. I am not asking for an end to negative or even harsh criticism, god knows, we need it. But what we need even more than that is considered, intelligent, thoughtful criticism that lays out reasons, arguments, analysis instead of “this sucks.”…
Yes.
The whole thing is here. Read it all.