A few examples include s*x questions on askreddit, “this” comments, nolife powermods, jokes being more frequent than actual answers
Meta drama communities.
It’s a fine line though - the “Best Of” subreddits are meta and some of the best on the site (eg BoLA and BoRU)
I liked bestof at first. I’m not sure if it got more transparent or I just started to see through it easier but it stopped becoming the best of reddit. There was some good items, but it ended up being far too many long winded comments that were half correct but agreed with the dominant view.