petunia
Speaking from experience, they could fix their spam and abuse woes very easily by just closing new signups or restricting it in some way. Simplest would be invite-only (built-in feature of Mastodon), or restrict the signups page based on IP range whitelist/blacklist.
EDIT: Their domain has been reinstated, and they disabled open signups. New registrations now require moderator approval https://pawoo.net/@pawoo_support/111249170584706318
:pawoo: Announcement! Thank you for always using Pawoo. Due to server congestion, new registrations will now require approval by a moderator. Thank you very much for your cooperation.
How have you determined these communities are no longer a legal concern?
The lack of an ability to prevent someone from doing something to you, without compromises on your part, is not the same thing as being okay with it being done to you.
3rd party services can access the posts, because the authors marked them as publicly accessible.
Those same 3rd party services can also index the posts in a search engine, but this is only because there is no feasible technological barrier to prevent them from doing so. If such an imaginary technology did exist, it would have been deployed already.
In the mean time, we can only count on a social solution, which is to merely signal our objections to search engine indexing, in the hope that maybe a law could be drafted that uses that as precedent to make indexing without consent illegal.
Here’s a question for you. Do you think it’s okay for Google or whoever to install invisible cameras everywhere in public spaces, that were explicitly for the purpose of collecting data to develop a facial recognition model to search people without their consent? Public space is public space …
Feeds/timelines are first-class citizens in the AT protocol and are decoupled from account hosting.
On Mastodon, your timelines are computed by the same server that hosts your data. Consequently, signing up to a server to have an account on the fediverse is the same thing as joining a community. You follow the servers rules and share the same local timeline as everyone else on that server.
On Bluesky, feeds are arbitrary, fungible and provided by any server, and it can be computed/curated/moderated however they like. So communities are “built” around feeds rather than around account hosting providers.
The AT protocol also has “real” account portability (though I have not seen this demonstrated in practice https://atproto.com/guides/overview#account-portability). On Mastodon, account “portability” is a delicate dance that requires the cooperation of both the origin and destination server.
Mastodon has something that Bluesky currently doesn’t: real federation. The Bluesky server that everyone signs up to doesn’t federate with anyone else, since the whole protocol is still a work-in-progress.
Spam has consistently been the death of the open internet, even the big tech silos struggle with spam (Instagram for example – despite having incredibly invasive techniques for identifying “genuine” users – is STILL inundated with spam commenters). I think instances on the fediverse should reconsider their open registration policy, either totally close registrations when you reach an agreed upon critical mass of users, or adopt some form of invitation or application system for new users. I believe Mastodon supports both in the software.
Matrix tackled this UX issue in the bud relatively early with https://matrix.to/. It still isn’t ideal, but much better than expecting users to install browser extensions or OS-specific hacks to properly handle ActivityPub links.