Small special purpose relays, like running a mailing list. Damus would need to change the way it thinks about relays to support this model. Right now it only tries to look in the users relays pool, but could be smarter when trying to look for specific content.
Discussion
If Damus can pick and choose relays for its users, does that not centralize control?
This does not change the user's choice of relays. It is being smarter about where to look when populating a feed.
Interesting ๐ค
With this model, if i have a user-write, global read relay, i can then collect every IP address that reads my content. IP should not have a source address but that boat has sailed.