He's also a photographer/videographer when he doesn't have anything to do musically. And sometimes he'll just walk off stage for a bit
Mr. Hahn, DJ Lethal and DJ Kilmore had the huge stoke of luck of being DJs in successful bands that kept them on long after bands stopped using them in a meaningful way. Even Sugar Ray kicked their DJ out when he stopped having a purpose.
Hahn is also a huge part of the creative process in regards to music videos, album art, conceptual pieces, etc. He and Shinoda both went to art school, so they're both really on top of the aesthetic aspect of the band.
I honestly think it’s dope when bands have members who don’t play traditional roles in the band be treated like all the other members.
Where are you getting this? As far as I'm aware, DJ Homicide left in 2010, he wasn't kicked out, and this was around the time most of the rest of the band left anyway.
I will say Frank from Deftones is a very different story. He’s pretty integral to their sound. Does a lot of consistent work throughout the song. Most notably keeping Steph from falling off the planet. Jk but Frank is great.
Joe is more of a Frank type than the other comparisons thrown in this page, even if it's hard to tell he's part of some of the latter stuff and whether any electronic flourishes you hear is something he came up with or Mike instead. He's also integral to their visuals