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)
Your client could be set up to ignore dislikes if you want, or to color posts that have a lot of dislikes, or whatever. It's just machine readable info on how some feel about the post.
Agreed, I was referring to the suggestion that people will be able to pay to censor others, site-wide. That's a very different mechanism.
