Reddit is SO MUCH WORSE than most people understand. Ignoring for a moment that peoples frontpage Best sort uses engagement metrics rather than upvote/downvotes since 2021, the moderators there have an iron grip over what is allowed.

r/redditminusmods used to track this. Every 12 hours they'd take a snapshot of the top 50 posts and then check ones from the previous 12 hour snapshot to see what percentage had been deleted. When it started, it was averaging 20% or so. By the end, it was at 50/50 or 49/50 deleted almost every single 12 hour period.

Of course, reddit couldn't allow this level of scrutiny, so they banned that subreddit for unstated reasons, and now the only good google result for it actually leads back here. See for yourself how bad it was: https://news.ycombinator.com/item?id=36040282

That only goes to two years ago. It feels like it's gotten even worse since then. That's not even going into some subreddits (worldnews, politics, etc.) creating the illusion of consensus by banning anyone with an opinion outside of a narrow range of allowed ones.