This is by far the biggest hurdle to something like this. You'll eventually have to end up again with a centralized curator.
Nothing is new under the sun since the internet was created, these are the same problems that email has tried and failed to solve for 50 years.
Now, do you think you can outvote riaa enforcement group equivalent, if they decide so spend money on this?
So claims Elon on Twitter, a platform that is very obviously to anyone who uses it completely overrun with bots who have found it very profitable to validate their spam accounts and get preferential listings for a mere eight dollars, while scaring off legitimate users who (fairly) do not trust a service with no functioning security department with their payment information.
In general though others are right that the problem often is that attackers are more willing to play these games than individuals - you are not willing to put up 10 bucks to post on a web forum, but an attacker might think $10 to get a wonderful commercial offer delivered to 1000 people sounds really good! You won't spend 10c to upvote each individual song, but the RIAA will! Etc. It needs to be highly asymmetrical, and ideally have minimal/zero cost to "honest" users with an exponential penalty for attackers.
Obviously we are not living in a post-email-spam world unfortunately, and what we have is basically the "lightning network" with gatekeepers offloading and centralizing a lot of the problem so users don't have to deal with it. But you aren't the first person to make the observation that these are related problems!
That's sort of the central point of my post....
Further more, the filter itself can be made to limit disclosure of the original data while still providing a binary decision regarding filtering a content or not. Hashing, bloom filters, ai models and so on are common tools for filtering data like emails and link reputation.
Is it possible to use bots or use a riaa enforcement group equivalent to get ad blockers to green lights specific ads? Personally I trust easylist as long the community does so, and would discard it the moment it lost the community trust. That makes it a kind of centralized curator, but also very much not.
just opt out of being an arbiter, like public utilities do
community indexer
why download anything from a list of torrents, okay use the same set of rules