Basically, if you want a guide, all usage of the word Krieg by black metal fans stems from, essentially, a mockery of the seriousness of the Nargaroth album 'Black Metal Ist Krieg', and anyone who has ever seriously used the statement 'Black Metal Ist Krieg' and meant it. Many things are Krieg, more things are not. The cat is Krieg because he's wearing a Morbid Angel hat and looks mean as fuck.