Dropsitenews published a list of websites Facebook uses to train its AI on. Multiple Lemmy instances are on the list as noticed by user BlueAEther
Hexbear is on there too. Also Facebook is very interested in people uploading their massive dongs to lemmynsfw.
Full article here.
Link to the full leaked list download: Meta leaked list pdf
By intent there is none, and it should remain that way. This works on public openness, everything needs to be visible not further hidden away out of our reach on our platform.
Well that is surely not my intent.