The platform in question was openly hostile to people asking questions and made discussions against the rules. That's why people left the moment a better option came along

Yes, it had that problem.

But it is hardly unique, and it concerns the community more than the platform itself. Many communities with anonymous access end up toxic. It is nothing new and dates back to early BBSs and FidoNet, where a hostile attitude reached unbelievable levels.

Sure thing, the LLMs will be more polite than humans. For now...