I can kinda understand the motive for carpet bombing an issue tracker with AI slop hoping for a hit, but then to whine about unprofessional responses is really too much. Time to unplug the chatbot.
Not to mention that the first couple of responses were very professional. At some point you just have to call a spade a spade, or not suffer fools, or whatever expression you prefer.
It sounds like a non native English speaker to me. I've worked with many non natives and some speak like that. Of course they also have enough self awareness to know they don't speak good English - some of them with much effort gotten good in a few years.
I also understand the "motive": money. If you can spam enough maintainers with bullshit vulnerability reports, there's a chance you'll hit something real or trick a maintainer and get a pay-out.