I'd say we're not there yet, but yeah, LLMs and image generators have accelerated it to the point, where I expect it to only take a few more years.
Gonna be interesting. There's definitely going to be some enclaves, like invite-only places (in particular messengers), and potentially the fediverse won't be worth targeting directly. But we do get lots of second-hand content here from places which are worth targeting, so yeah, will probably still notice the change here in one form or another.
Really my biggest frustration is that it isn't transparent what's generated and what's not. If a human wrote the code, then I want to teach them, especially if there's glaring logic issues in the code.
But at the same time, the most likely cause for glaring logic issues, is if they generated the code. And then it's just a complete fucking waste of my time to try to teach them.