I comment a shit ton and often with absolute banalities. Especially on posts with 0 comments.
My reasoning is twofold: first of all I want to encourage posters by engaging with their content so they don't stop posting. Second I want to invite others to comment and it's much more inviting to do so if a post has at least one comment. People tend to think it's dead otherwise and not bother.
I think at the current level of MAUs there is no comment too small, and every little bit helps just by virtue of breaking the silence.
Great game. Basically a linear, cinematic corridor shooter with some cool lore and some great levels. The library level was an absolute highlight.
Definitely recommend it, especially as a free game.