is there a federated platform similar to 4chan ie. topic boards with ephemeral linear message threads? i dunno how else to describe it but I like the 4chan format, it’s just got the worst people in the world on there (which I figure could be mitigated by the federated server type thing)
I think there is quite some overlap with Lemmy. You can do images and threads here. And they even show up in a tree-like structure. I’m not sure about ephermal, I don’t think Lemmy is as advanced. But other Fedi software have ephemeral posts.