Ok. I'll throw myself on my sword and give a different take than what most people are.
I wasnt into reaction videos aka analysis vidoes at all until Kpop Demon Hunters came out. I really like this movie. I've even watched it several times, including once at the theater, which is very unusual for me.
I have a fairly isolated life. Not many friends and the few I do have I only see occasionally. So I don't have anyone I can gush about this movie to let alone rewatch it with or introduce it to.
Putting on a reaction video while walking the dogs lets me listen to someone else enjoying discovering the movie for the first time. Obviously I can't participate, but I've still shared their joy.
An alternate one is singers analyzing music videos. I watched someone going nut over a Beatbox video of Beatpella House, then saw their reaction video of VoicePlay covering Nothing Else Matters. Mindblowing rendition! I would never have found this without scrolling through their other videos. Sometimes being open to new things pays off.