To answer the question, "Who uses 'dude' anymore?", I believe the Big Lebowski still uses 'dude'.
MELY - 4milly+ boom shakalakalaka, boom shakalaka boom shakalakalaka, boom shakalaka shakin' out the weak hands boom shakalakalaka, boom shakalaka boom shakalakalaka, boom shakalaka
Hey,wait a minute - that 4milly+ isn't even enuff to get the anticipated delayed divvy boom shakalakalaka, boom shakalaka boom shakalakalaka, boom shakalaka BOOM
"SPECULATION DOESN'T MAKE IT RIGHT, JUST ENTERTAINING" - SPARKS MAXIMUS