15% of these subreddits contained content likely posted by bots or corporate trolls

That’s very different from 15% of all reddit content being that.

2020

This is before LLMs (2022 is the Internet LLMpocalypse) so I imagine this number has increased significantly.

Search Engines have been nearly completely obliterated by AI SEO, I find it hard to believe that social media manipulation hasn’t exploded just as much. It’s just more subtle.