That's an extremely unfair read of the situation. The extension doesn't even ban anything. It is a research project attempting to understand why the YouTube algorithm recommends the videos it does. Whether or not you think Plandemic (a nonsense conspiracy theory video) should be banned or not you can still see research into the YouTube algorithm as a worthwhile endeavour.
This is not just an open-ended inquiry of what youtube is recommending. It's about finding the bad and getting rid of it.
EDIT: I also want to remind people about how Mozilla used its push notifications to call for a Facebook boycott over objectionable content.
What part of this is untrue?
And again, you're saying "getting rid of it" without evidence. It's a study. It does not mention banning anything, anywhere. If the argument is that they should not study this because it might lead to bans in the future then you're being pro-censorship in order to promote anti-censorship which doesn't make a whole lot of sense.
I'm not saying they should not study this thing. I am just discussing their aims, because I think it's interesting, and it may inform others' choice of whether to participate or not.
The characterization of pandemic conspiracies and political disinformation as harmful.
It's like kids and allergies. You never hear about kids who grew up on farms being allergic to animals - it's always those whose parents didn't have any when they were growing up.
If people aren't subject to misinformation, they'll never develop the sense of who's lying and who isn't.
It used to be that we gave common-sense advice - "don't believe everything you read on the Internet". Now, it's the other way around - "we must cleanse the Internet of harmful content".
Being exposed to misinformation is good for you, and it's good for democracy.
Meanwhile, the actual state of affairs is[0] that there's one allergic farmer child per three allergic non-farmer children. Don't believe everything you read online.