@skobkin I’d say
To avoid cluttering feeds of others with replies
by which I often mean replies that have no value outside of a thread I’m replying to. Although since unlisted replied are not bridged by Bridgy Fed it became… complicated.
@tennoseremel
Yes. That's how I understand the most usual use-case scenario. But I want to check if I'm out of touch with this matter.
unlisted works because of the push nature of standard (AP). Other servers can always pull the post and show it, but that would be expensive to constantly poll servers. so they rely on pushes. Since unlisted never pushes to peer servers except in the case of indivuals that follow they dont generally get out to the fediverse.
That said they arent a security thing, it can be easily circumvented.