The concept of Reddit is really compelling, and I'm told that in the old days (pre-2010 or thereabouts), it really was a glorious place with a free exchange of ideas.
There are still some interesting corners (the Air Force subreddit is entertaining). MilitaryStories is another one. If you have some obscure, niche interest, chances are there is a subreddit for it.
But when it comes to politics, or really anything related to current events, Reddit is a left/progressive echo chamber. If you aren't posting the "approved" opinions, then don't even bother. You'll just be downvoted to hell, or just have your stuff deleted.
To add, Reddit is yet another social media site where it's not clear how they make their money (the advertising is minimal, they do have some "paid" user options, but those aren't very widely used). When it comes to social media, if you can't figure out what the product is, then the product is you. So, one wonders what exactly Reddit does with all the user data it vacuums up.