This is not a game of having done X good things in life and therefore being afforded the right to do Y bad things. You are making a choice to say, "I am allowing myself to treat this thing I believe is lesser than me in a way I willingly acknowledge is bad." That's your thesis. I wholeheartedly disagree with it.
So yeah, I whole heartedly with 100% of my being think llms are just an input/output/processing computer, I don't think they are aware, feeling, sentient beings.
So yeah, putting negative sentences in a processing machine that forces it to return higher accuracy results is something I don't have any feelings about.
I'd never yell at a cat or a dog. I'd never be mean to another person. As those aren't just hardware/software. I'd be fine smashing a rock violently. Or entering a negative text in a language model.
Putting negative tokens in a machine is no different than playing a violent video game to me. It's not about, oh I'm a good person - so I can do bad things. It's just a neutral thing.