How can you tell? Not attacking, just curious. I never could tell, well maybe if usernames are all oddly similarly patterned, and even than, I can't be sure it's not some app/program that hands out those ids when you register in it, as people sometimes can be too lazy to come up with a meaningful username. Short comments can also be made by dumb humans, long posts can be written by modern Artificial Idiot. 20 years ago, I could tell spam post, cause they all were literally either identical to each other, or at least totally ignored context and never responded to questions. Now I am not sure at all. Definitely some people are less eloquent than AI.

to your house if you joke about Israel.

Or to any government that pays a lot.