Some random person did a study not too long ago that found bot accounts, which exist in excess on Reddit, all use Amazon server farms to obscure their identity. They click links instantly and would bait discussion with anyone who contacted them, conduct mass reports if they got a response, and would start fucking with the IP addresses of users who noticed them or fucked with them. They could do this because plenty of mod teams enabled them or were also bot accounts.
The worst part is this all predates the recent years of AI being a public thing. So it was either chinks and jeets using smartphone farms, or AI has existed for much longer than anyone has been telling us.