My experience may be a bit limited, but from what I've personally experienced and witnessed so far, the metalheads whom I've seen as "losers" other than those highlighted on the posted link - thanks ABSO for posting - are people who continually perpetuate the negative mainstream stereotype of a "metalhead." These are the people who are addicts (drugs, alcohol, porno, etc.) and drifters with their rather silly, immature, homo-erotic party attitude and behaviour. The ones who like to listen to metal as just another form of "music" or "rock" or not only use the term as an artificial form of identity, as someone else here in this thread put it - thank you, but also to use that same identity as a deluded form or farce of "everlasting youth."
For example: "Yeah man, I"m gonna rock n' roll all night and party everyday until I die!" \m/\m/
These people don't do anything more but use the music for pure, personal entertainment and nothing else. Additionally, many believe it will preserve an element of "youthfulness" or some delusion of "self-righteous immortality."
I've had a few instances where I actually tried to make a good debate on other forums and, not surprisingly, I got ridiculed for "taking the music too seriously."
I don't care, they're the ones who don't understand or appreciate the inner beauty of life. They're just a bunch of "scenesters." Even in a supposedly "outcast" subculture, even I am an outcast among the "outcasts" for making a more valid, legitimate point.
As ABSO said himself: F**K THESE PEOPLE! Or in short, just F**K 'EM!