This is a SNR discussion, the N has just gone up an order of magnitude and may well go up multiple orders of magnitude more to the point that communication between people will be drowned out by non-people attempting to communicate with people. It's the spam problem all over again.

I predict the outcome will be roughly the same: a more or less working set of LLM filters that allow you to filter out LLM output at the price of some false positives and some false negatives. Coming soon to a browser near you: the Bye AI Plugin.