(barring instances with hidden blocklists)
Apart from setting up and running your own instance to defederate*, there is no way of making your feed filter out the subset of users from dbzer0 who think they should spread their instance’s values of AI content across all parts of the Fediverse, whether or not it is welcome there. If somebody could set up an instance with this community’s values and filters in mind, I imagine that would be helpful to many of us. This instance could be adapted to defederate from other AI-spreading instances as well.
Fediseer, the default web tool for instances to document issues and endorsements of other instances, which incidentally is maintained by the admin of db0, shows that lemmy.dbzer0.com has received no censures whatsoever from other instances.
*or instead manually blocking every user from dbzer0, which would be futile as they continue to gain users
[EDIT: Since many people seem confused, here is how blocking an instance works:
Given that instances X, Y, and Z are all federated with each other:
If I am hosted on instance X and I block instance Y but don’t block instance Z, users from instance Y can still post/comment onto communities hosted on instance Z and I will still see these posts/comments.
Only by defederating from instance Y would the content made by instance Y users that is posted onto any instance become wholly filtered out for users on instance X.]
Please show examples of the pro-AI users of db0 trying to spread it to other communities.
That would pretty strongly go against the general "vibe" of the db0 instance, and I'd expect the db0 admin team wouldn't stand behind their users breaking rules of other comms (assuming the other comms have rules against it).
If the other comms don't have rules against it, then you block the user in question. If you feel this strongly about it, make your own comms and instance.
If you check my posting history you'll see I'm active both in this comm and techtakes on awful.systems, both very strongly anti-AI.
I blocked the AI related comms on db0, which took maybe 10 minutes. Beyond that, I would block any users doing what you've described if I encountered them, but I sincerely can't remember encountering more than maybe two users in my two years here who would fit that criteria.
This entire post reeks of bad-faith and purity testing.
Most of the Ai stuff is limited to dbzer0 comms.