No, you’re definitely allowed. Otherwise you’d have had your comments removed from the public discourse.

The up and downs just gauge public approval to the comment. Remember, you’re also free to up and down vote to voice your disagreement.

Also remember, if you think everyone around you are assholes then likely you’re the asshole.

Edit: I just saw your other comment on the lack of variety of posts. Be the change you want to see. Find something interesting and make a post!