It's a peer review platform build on atproto tech (aiui the vision), not to be social media, though I would not be surprised if it has elements of that

Peer review goes beyond the formal process, in the court of IRL. Social media is one place people talk about new research, share their evaluations and insights, and good work gets used and cited more.

Arxiv has been invaluable in starting to change the process, but we need more.

Has a bit of a leg up in that if it's only academics commenting, it would probably be way more usable than typical social media, maybe even outright good.