Dunno about heavy metal, but Otaku, and computer/console game players are different groups with often sharply different conventions. I found some similarity between otakus and trekies, but there is far less similarity between trekies and computer game players.
You're mistaking my approach, I'm not saying they have similar conventions and "rules", just that they are 3 recent industry cultures, with similar targets (the youth, generally speaking). How they evoled and ended in different states is precisily due the differences in both conventions and marketing tactics, and that's the interesting thing to compare & study.
For instance, due hundreds of reasons, from end of cold war to media concentration and economic boom, in the US the 90's was the culmination of pop culture on those industries; Heavy Metal got from Metallica's Black Album to Slipknot & Linkin Park exploding on MTV; Otaku Culture had tons of animes like Dragon Ball, Saint Seiya & Evangelion, not to mention Pokémon and even all those countless jRPGs like Final Fantasy; and gaming was in a golden age, for both PC and consoles, like Dexter posted earlier...
But games exploded even more after, grabbing new markets and expanding their audience, sacrificing so much in the process that even "Causal vs. Hardcore" became a thing (I'm talking Farmville vs. Halo here, the existance of 'ultra-hardcore' like the Codex is even more interesting). Meanwhile, Heavy Metal went back to it's niche, remaning a target of prejudice from society, largely away from mainstream except for soldouts like Avenged Sevenfold (and Metallica
). But the otaku culture stayed half-way between those two; while in the early 00's it seemed to follow games footsteps into mainstream, it's pretty clear that it didn't quite make it, and it's now going back to a niche, a cultural ghetto busy with ciclerjerking about their moe waifus, hostile to non-believers and looked down by society.
When trying to understand why otaku culture is going throught this process, comparing it with the other two cultures offers invaluable insights.
I refused to go into movie industry with words I want to do an interactive art, while I can work great with camera, and I'm excellent dramaturg, I don't want to feed these people who want just look. I don't want to feed these who just grab only what they see, nothing more.
I got what you're saying, but I didn't get what it means in this context. o_O