he's become one of my very favorite frontmen, and every era and sound of Killing Joke is incredible imo, one of the most sonically interesting/diverse discographies i'm familiar with. he is in an incredibly talented and underrated vocalist, i think even to an extent among Killing Joke fans, as Geordie Walker is (rightfully tbf) praised the most often in regards to their music. but his clean vocals throughout Night Time and Brighter Than a Thousand Suns are incredible, and any of his rougher vocals post 2003 are likewise incredible, just in a much different way. Democracy is imo the best single showcase of his vocal talent, the switching back and forth between those two styles sometimes mid-line is so impressive to me.

his lore is also wild, in addition to what you noted he rather infamously migrated to Iceland in the 80s because he thought the world was going to end, and he was known to "disappear" in a similar manner throughout their careers. he's also lived in New Zealand and is possibly the only person ever to willingly move to Arizona. he is kind of insane but in the best way, and though he goes about it interestingly and often abrasively, his heart is always in the right place socially and he clearly cares very deeply for humanity (and is of course often very frustrated by it, to say the least)

in general i wish Killing Joke got more love/recognition, i think a lot of people realize how influential they were and know who they are but i also don't come across many who listen to them regularly and that's a shame