Reddit did have a lot more interesting people at one time, but most of them have been driven off. If they posted on any wrong-think subs during the scamdemic, it meant a lot of their posts were retroactively deleted via moderation scripts. It's now filled with a ton of [removed] [removed] [removed]. I wrote about this a while ago:
https://battlepenguin.com/politics/how-reddit-banned-ideas/
The in-group upvoting goes both ways. One only needs to look back at the old Voat and how it did it's "CCP" system to see the opposite happening there:
https://battlepenguin.com/tech/voat-what-went-wrong/
..ensuring these types of communities can only be radically divergent from inception. The same goes for Orange Reddit (hackernews) as well.