Here's why I don't think this is a good idea.

1. It would be extraordinarily easy to bot it and just silence anyone you want.
2. I agree, moderation is absolutely necessary to maintaine civil discussion, but silencing people, because they have unpopular opinions, is a really bad idea.
3. I love lemmy because it is the ultimate embodiment of decentralised free speech. This destroys that.
4. If I were a bad actor, hypothetically, let's just say lammy.ml or haxbear and I decided I wanted to silence anyone who disagrees with what I have to say. Then I could just make a fork of this project to only value my instances votes and censor anyone who doesn't agree with what my community thinks.
5. This tool simply acts as a force multiplier for those who want to use censorship as a tool for mass silencing of descent.

Yes, I've read the Q&A, But I can simply think of more ways to abuse this bot for bad than it can be used for good.