Do you 'get' metal and/or extreme metal?
I'd like to think I "get" metal, to a point. I much prefer something a little more melodic and understated than the grinding guitar static and double-bass hammering of what I think of when I think of "extreme" metal. The likes of Slayer are not a happy sound to my ears, and frankly I just don't like that sort of sound, and anything akin to it.
Are you a fan? Are you indifferent? or does it make want to scream 'ARGH TURN IT OFF!'?
I grew up on a heavy dose of progressive metal and the likes of nu-metal back when the sound was actually in style. The likes of TOOL, Korn, White Zombie, early Mudvayne and early Staind fueled my adolescence, so I do hold a fondness for those styles of metal. They are not my first choice for listening these days, but I keep them on standby in my iPod because sometimes I do desire those kinds of sounds. However, like I said, I just don't like really heavy, grinding, noise. I never enjoyed Slipknot or Slayer or the likes of Cannibal Corpse or what have you, just not for me. To that, I would say "Turn that off!!!" if I had a choice in the matter.
If you are a fan, tell us why and how it makes you feel to throw on some good old blast beats and death growls
Since I'm not really a fan, I can't really comment on this. But what little heavier music I've enjoyed has always made my face scrunch up in a strange sort of smiling anger every time I listen to it. I might even mildly headbang. Maybe.
To finish, I shall leave you with some sexy melodic death metal to make your eardrums happy 
[--video--]
^Okay, that wasn't too bad, but a little too aggro right off the bat. I don't think it made my eardrums happy, it's just not the sounds for that job. It just doesn't do it for me, anymore. Somewhere along the way I developed a fondness for music of the electro persuasion, and I just can't look back anymore. Those are the sounds that make me happy. Strange, that I can get all kinds of down with the grinding static-like synths and deep bass sounds of, say, Justice (first thing I thought of), but the gridning, static-like guitar and thumping double bass of metal, well.....just not that into it. Go figure. *shrug*