You don't. I don't. We don't. My comment could have been written by AI, just as your post. At some point I'm sure some of us, without knowing, had a discussion with an AI bot pushing some sort of propaganda or shilling something. I mean, it was happening even before AI - years before, and some political regimes have been flooding the internet with their shit and it was well documented. Now it's just getting worse.
Even "vetted account run by a real person" can be later handed over to an AI bot farm.
Also, I have fun imagining a bunch of AI bots stuck in a discussion loop, endlessly shilling crap to each other, creating insanely long threads until the platform can't handle it anymore or until a Mod AI comes along and slaps them out of it.
I'm glad I got myself noise cancelling headphones. Ah, the peaceful isolation from the noisy world.