Never really got them, to be honest. I mean, similarly to art, it’s different for every person, isn’t it? Some people may not like the same ones because they don’t like the genre, and if that’s the reason, are they qualified to give a music review for said genre? What if they do anyways and are sourced as credible reviews for it?
I can give 0/5 stars for boy bands like One Direction and Justin Bieber because I believe their lyrics and music are shitty, but half of the teenage girl population love and adore them.
Maybe it is just about opinion, but hey, maybe my generation is just getting stupider. IDK.