I was browsing around beatmap listing, looking for good metal map, but was unable to. Then I searched my favorite metal song, discovering it was under rock genre. I was really pissed. After that I found multiple maps that have the same issue, being under rock genre while actually being a metal song. For example, Galneryus - Raise my sword mapped by beem2137 and Yousei Teikoku - Shadow Corps mapped by IsomirDiAngelois are both under rock genre, whilist both being clearly metal. And because of that, I was convinced that mappers don't know difference between rock and metal. Difference between these two genres are in sound and BPM(depends on subgenre). Sound on metal is way heavier than on rock. BPM on metal is usually(depends on subgenre) faster than rock.
Edit: Typo
Edit: Typo