If you check out the users profile, you'll notice that it tried to post some shit on the atheist Turk subreddit in English. Primo bot behavior and dead giveaway. Also the Turks didn't seem to enjoy it much.
By perusing further, you might notice that the majority of people don't notice that they are conversing with a fucking bot. This is profoundly upsetting shit
It's a brand new flavor of bullshit that people need to adjust to. In the same way that you may be wary of clicking certain links, reading spam mail, not giving personal info out, we will need to have an extra sensor in our brains for how LLM-y a user is.
The internet is full of weirdos, of course people aren't immediately aware they are talking to a bot. They mistake it for an idiot. A tool that tells you which are bots and which are not might be a good solution.