Possible, but far less likely. This would require real humans being involved to verify each new account (after getting invited, you're dropped into a queue to be approved by admins).
Honestly, I think the "but anything can be circumvented" attitude is part of how we got here. People have just given up. These problems can be solved/mitigated, but the nihilistic POV has to be killed in order to solve them.
I'm afraid bots HAVE gotten to the point where they could fool someone, you only need to fool one moderator and bots would have no problem just shotgunning into chats until one gets past the wall
Honestly, I think the "but anything can be circumvented" attitude is part of how we got here. People have just given up. These problems can be solved/mitigated, but the nihilistic POV has to be killed in order to solve them.