Well that sucks, I really enjoyed keeping an eye on Ragu, he reminded me a lot of myself - not a lot of raw talent either, but the will to work at it.
As for why he left I'm guessing he woke up to himself - lots of time spent for little return, lot of old comics that are just depressing to look back on after his skills improved. Sooner or later a man just wants more, and once it's realised the experience was worth more than the body of work, he's just gotta do what he's gotta do.
This won't be the end for Ragu :)
Peace be with you brother.
---
Dinosaurs had eggs bro, the chicken came way later.