> And it's also been widely known for that long that Reddit is an influential venue in which to take over a corner -- for marketing or propaganda.

Capturing moderation of a subreddit has long been a strategy of marketing agencies.

Even when they can’t take over the actual mod positions, they’ll shower the mods with free product and make them feel like a VIP. I watched this happen from inside one company and I couldn’t believe how easily the marketing team turned a mod into our biggest advocate by sending free products to them from time to time.

> A bad actor mod of a popular subreddit can persist for years, visibly, without people managing either to oust the mod, or to take down the sub's influence.

In some of the subreddits I followed, the remaining subreddit users felt some relationship with the mods over time and felt they were on the same side. There are subreddits like /r/nootropics where many users don’t realize the mod team has been captured by a supplement company (Nootropics Depot) and that they have a history of deleting some posts critical of Nootropics Depot. You would think this would be grounds for a subreddit riot, yet whenever I check it feels like everyone there is fans of Nootropics Depot and therefore they get a pass. Note that the quality of the science discussed on /r/nootropics is generally terrible and of very poor quality in recent years, which is certainly a related factor. It’s also not hard to find comments in other subreddits from people who were banned from /r/nootropics.

I think this happens across a lot of subreddits. Moderators find reasons to ban the dissenters and shape the conversation until the hive mind consensus favors the mods, so any issues aren’t discussed. People who object are banned for different reasons and minor infractions, then get tired of Reddit and move on. What remains is captured by companies pushing their products to an audience who thinks the mods are doing them a favor.