In my opinion Reddit has a content problem in the same way 24 hour news does. Simply put, there's not enough content to put up constantly so it's supplemented with repeating memes, reposts, and drama.
At the end of the day it comes down to the upvotes, though. If the other users are on your wavelength, you’ll probably like whatever they recommend. But over time you could have less in common with the average user there, meaning what they upvote will be less relevant to you too.