Its top 100 or so subreddits are moderated by the same ~10 or so individuals who impose their ideological views on the subs and delete posts or ban anyone who dares challenge them.
A great example of how community moderation inevitably slides a platform to one side or the other of the political spectrum.
I honestly don't think mods on reddit should be allowed to moderate more than 1 or 2 of these top sub-reddits, this would at least force some semblance of diversity of thought on the platform.
I think you’re dramatically overestimating how many sane adults would want to mod a top 100 Subreddit for free. It’s a job that generally only attracts the very dedicated, the very bored and/or those who’ve figured out how to monetize it.