Sure, I can’t know if there are bots that are really good at imitating people. But it’s my choice to go them the benefit of the doubt.

I think the most likely case of encountering a non-obvious bot would be if there’s a human behind it copy-pasting responses, which means there’s still some degree of engagement. If you don’t tailor it to the specific context and don’t double check it, it’s likely not going to be that convincing.