Y'know...it's fine if a dev wants to stop developing or supporting a rom. It's their free time and they get to decide what they want to do with it. That said, it wouldn't be that difficult to drop a quick post in the thread saying "sorry guys, I'm done" rather than just disappearing without a trace and leaving everyone wondering what's going on. I don't see what's unreasonable about that.
Every one wonders why the good devs leave these forums.
No, the unreasonable thing is that you feel you need an explanation.
Any other producer of a good in the world, when they stop producing something do you *expect* a reason why?
This is free. If you donated, feel good you donated. If you feel you've been cheated, don't donate? Again, this is a ridiculous conversation.