I know someone probably already brought up the unoriginality problem somewhere in this thread, but I'll just still say it.
As someone who's watched a few commentary channels before, if there's one thing I can truly say about them that gives me a migraine is how unoriginal they are. It's always "[x] did this..." or "[] stans / Gen Z are INSANE/STUPID/CRAZY/LOST IT (don't forget the caps!)", or "I feel so bad for [x]...".
Everyone's content feels the same. There's no creativity, no originality. Same-ish voice, same "what's up, guys" intro, same-like gameplay. It's all the same. The thumbnails even feel the same. Whenever drama happens, it's always the same image plastered in and zoomed in to look dramatic, with the big, fat white text on it. This stuff lasted for years and it's just pulling out random video after random video cause they know people are wanting to see the big, bad drama from strangers doing stupid stuff. Should also mention the "[x] is racist now..." with the most stereotypical "2016 SJW" thumbnail ever.
I may seem MATI on this, but as a past viewer of some commentary channels, this stuff bothers me like a needle on anthrax.