> I'm amused that it made me accept the terms and conditions without any indication of who I am
as far as i’m aware, that’s fully binding and often an accepted practise - take Minecraft’s server software, where you must accept the EULA with a text flag before running
but if an agent automatically accepts an EULA for you, is it binding?
It would have to be. And it's not new in the law at all. The principal-agent problem was one of the main enablers of the golden age of piracy. But that doesn't mean it isnt a solved problem now (in the law and practically)