Not only is censorship always bad, but this idea doesn't even make sense technically. Memo (the protocol) is uncensorable by definition, since anyone can broadcast a bitcoin tx. (1/3)
It's not censorship, it's information. Censorship is saying you can only say you like something but not that you don't like something. What *you* do with the info is up to you.
If you're referring to downvotes, I agree, they are informative. But censorship is never informative. Express your opinion, positive or negative, but don't hide other people's content.
