"Aggressively Against LLM Usage" is the wrong way to think of it.

If my hobby is running, I would refuse to use a car to do my morning loop. Not because I have anything against automobiles, but because that's not my hobby.

Also, the issue linked to isn't really about LLMs. It's about someone being a dick in an online community and being called out for it. They just happen to be using LLMs to be a dick, but that's not the main issue.