Before I left Reddit, I used a plugin through the api to replace all of my comments with random gibberish and then delete them. Part of this was because (mandatory) fuck spez. But more importantly, it was to protect the anonymity of my account. After years of posting, there is likely enough personal information shared to potentially connect my Reddit habits to my online identity. I wasn't planning on using Reddit again in the future on that account, but I left it open in order to maintain some security control over the account. I'm not really sure what to do at this point because I still consider it a security vector that's a bit concerning. There's no way I can manually edit and delete all of my content with the snail's-pace reddit UI, and I have no ability to assure that my content will remain unavailable or at least not publicly displayed.
But you can fill up reddit with the most insane shit and they will train AI on it, both reddit and google.
The fact that they are restoring valuable comments and posts means that they need them. But what if the most knowledgeable people on the platform go crazy? It is illegal to conspire against companies?
I don't think that could be done at a scale that matters, because it doesn't make you any money.
TBH the bigger threat is the corporate bots that already post in "human" subs. They're destroying the site already, but Reddit doesn't really care about that either, lol.