Default What's happening to devs?

Well, as the topic says, some devs dissappear without any sign,eaving unfinished project or something. What's happening to them? Are they dieing or something? :/

Wysłane z mojego GT-I9100 przy użyciu Tapatalka
Device: Samsung Galaxy SII GT-I9100(dead)
Rom: NeatROM by _Sale_
Kernel: Apollo ExtremeV0 (always latest) / Roms's stock
Battery: Samsung's 1650 mAh Battery Kit + Power Pack