I welcome censorship on my personal site because I control the censorship.
Likewise I'd like the option of controlling the conversation for responses to my posts. You're welcome to say whatever you want about me - under your own threads.
You're not going to get much sympathy if your stance is censorship = bad
> Upvote / downvotes are good enough on their own
Not sure I've seen this work. It's not good enough for Reddit or HN, both of which have heavy moderation.