Spin's top 40 metal albums - a rebutal

The name of the list (as far as I could read) was "40 Greatest Metal Albums Of All Time" , so it could either be the magazine employess favorite records or the 40 metal records that sold the most copies. Although a lot of people don't consider "Appetite for destruction" as metal it sold 13 million copies, so maybe it should be on the list if it's the latter.
By the way, if Korn isn't metal I don't know! Iron Maiden is heavy metal (you'll probably agree) and I would say Korn's music is harder than Maiden's so I'll call it metal. Pantera is harder than Maiden, so I'll call them metal too. Whether you like the band or not is not the point. Personally my comment on Korn the first time I heard them was "Goddamn this sucks". I think that was in '95 or something. The last time I heard Korn my comment was "Goddamn this sucks".