You tell me as I don't have a clue.
Nothing that I endorse or find useful. To each his own.
I won't echo the judgmental rhetoric of my parents' generation and slander death metal, but it's not for me. Anger is a turn off.
I've seen two question of you asking about "Genre"s promotion"
Music genres won't promote anything. It's musicians who choose how they personally want to promote about the music they representing and what subjects they want to promote with their music.
The only thing that genre represents is the environment of it's music. Which is the usage of notes,octaves and instruments.
For instance, generally when you say rock, there must be basically a drum,bass guitar and electronic guitar, it can be also a rhyme guitar as well. Now Rock has so many groups into it. When you add "electronic samples" to those instruments. The genre turns into Nu metal (it's one of the rock genre levels)
When you say death metal, the instruments are the same, but what happens into it is heavier usage of octaves. And more screamo notes. And usually the high percent of death metal culture is into countries like Finland,Denmark and Norway.
Anyway, so the point if you looking for promotions. You're in a wrong place. This is a total misconception that a genre would promote something. It never does. It's musicians itself that promote their topics that's all.
For example, let's say rock, you can find ten different rock bands that represent ten different purpose and topic with their music. It's not necessarily because they all doing rock so they all need to say the same thing no. As simple as that.
I'm not sure I listen to death metal ... But I love the song Freak on a Leash by Korn ... Cos sometimes when you're angry , angry music is an amazing outlet :) also when I was really pms'y my ex would say " don't tread on me " is my song :) that's just metal ..
But would make me laugh even though I was RAGEING :p I think all music has a purpose ...even death metal :) I don't have experience with that but it's the closest I can get .. Sooo DONT TREAD ON ME :p
Death.
You will never catch me listening to that ear cancer, some metal music is good, but that's the most I will entertain.