Why are books, movies, music or any form of art criticized (good and downside) for? Because one of their purpose is to be discussed, to make people think, ask themselves questions, debate over it comparatively to other artworks or contextually. We literally do this in school, in brodcasts, websites, and people even work on that. It's only natural to criticize, debate over something. I mean we always do this no?

Don't you ask yourself questions when watching or reading something ? Don't you have an opinion on wether you like something or not?

This sub (like a lot of sub) is made for people to share and discuss their thoughts over something in common.

It's not really pointless, but to each their own.