I wish they'd explain up front exactly how this makes journals obsolete. I also wonder if there are any safeguards against this turning into yet another rent-se

I wish they'd explain up front exactly how this makes journals obsolete. I also wonder if there are any safeguards against this turning into yet another rent-seeking journal. And I don't think it requires a service, and certainly not a Silicon Valley startup. Labs can just put their papers up on their web sites, and make hyperlinks to those they cite, review or otherwise use in their work. Wasn't that the whole point of the web in the first place? Semantic web can be used to make the metadata machine readable, and PGP signatures can authenticate the peer reviews. These crusty old technologies are perfect for the task because it's the same crusty old researchers that came up with them that are going to use them.