Great, that's perfectly fine; everyone likes or dislikes some things. Nothing wrong with that.
But not posting your opinion is something you're allowed to do... In fact "knowing when to shut the fuck up" is the major factor that distinguishes an asshole from a non-asshole.
I don't think expressing one's opinion in a way that is not derogatory to anybody would be akin to being an asshole. Sure maybe the comment would've been a bit more appropriate at another time but they specifically complemented Braugher's performance.
Saying that something was "cheap crap" except for one performance, is not really constructive to any discussion. It's also definitely derogatory. It's mostly inflammatory. Them complementing Braugher's performance doesn't really change the tone they started out their comment with.
As an example of their comment that isn't Derogatory/inflammatory:
> His performance in Brooklyn 99 was about the only thing I liked in the show; he is very good in the House M.D. episode/s that he's is in.
So obey me and obey my command upon what is good and right and acceptable; this is surely some sort of authoritarian on consensual pressure pushed upon people that might otherwise have a contrary opinion. Good to see you lay it out so sordidly and so sorry in terms of your own prior biases which you yourself must necessarily deny even exist. Isn't that right?
But not posting your opinion is something you're allowed to do... In fact "knowing when to shut the fuck up" is the major factor that distinguishes an asshole from a non-asshole.