While I tend to avoid conspiracy theory type thinking, the nature of modern social makes it very easy to run astroturfing/botting campaigns. It's reasonable to be suspicious.
I mean, a lot of it is just people who started using chatgpt to do some simple and boring task (writing an email, CV, or summarizing an article) and started thinking that it's the best thing since sliced bread.
I would know that since I'm a university student. I know the limitations of current AI stuff so I can cautiously use it for certain tasks and don't trust the output to be correct. Meanwhile, my friend thought that he was making chatgpt better at answering his multiple choice economics quiz by telling it which of the answers it gave was wrong...