Most critics aren’t constructive. They tear down the effort of others but draw no plans for the erection of something better in its place.
“You should have” with no “next time, let’s.”
“I don’t like” with no “I’d love it if.”
“I hate it when” with no “instead, perhaps.”
Don’t like that post? Write a better one.
Don’t like that guy? Be a better one.
Don’t like that way? Invent a better one.
This separates those who criticize for sport and self-aggrandizement from those who do it to make us all better.
The most powerful criticism is creation.