I found XOXO conference to be much the same way. The attendees were capable of some basic social grace, but having manifested from the context of "internet people," they lacked substance in person. It's not hard to not be an internet person. You just have to decide to actually study something, anything, and to a deep level. Once you do that the grounding manifests itself and then you have more important priorities th…
But anyway, there’s something to what you say but I think that analogy doesn’t go very far.
Every year the hosts have, in their intro keynote, urged attendees to be more outgoing than normal. So yeah there are lots of introverts.
But the promise is that being more outgoing will pay off - because XOXO is curated to be entirely nice nerds. And it’s very anti-grifting. The scene the OP portrayed of e-girls and NFT guys seems like a polar opposite of their vibe. It’s more literature nerds showing off their board game about Pride & Prejudice, or an indie game about a mischievous goose. The whole point of XOXO, I think, was to find people who were doing internet stuff for the love of it.