I like the term boomer shooter. The reason is the alliteration. But more importantly…
Rookie Level 1 Gamer: “They’re called boomer shooters because they’re old like baby boomers”
Veteran Level 20 Gamer: “Baby boomers thought Doom was satanic, that’s a stupid term”
Enlightened Level 60 Gamer: “They’re called boomer shooters because of the huge debt they owe to the original Doom modding scene and therefore “Boom”, one of the first limit-removing source ports”
GigaChad Level 80 gamer: “Who cares. My ego isn’t so delicate as to have my sensibilities offended by whatever the fuck you want to call it. If you think something like ‘MyHouse.wad’ is something that is for “bOoMeRs” (a.k.a. anyone old enough to know that it’s called a “VCR,” not a “VHS player”) then you’re the one missing out… not me.”