i try to be as rude as possible in all my posts. no AI is rude so i'm sure no one will think i'm using it.
Most of the AI text generating tools I have tried can be "forced" (or rather persuaded) to use any expression style you want. So, aiming for rudeness might not be the unique snowflake you think it is. I think the content of your posts is much more important than the way you express it. Whether it is polite or rude makes no difference.