I dunno, I've got a pretty long list of Apps I've bought and if Apple kept telling me every time the status of one changed, I might find that rather annoying. I spent a little time cleaning out my library a few weeks back, and I found that quite a few of my older apps are no longer available on the Store and I don't think they were all because of closed accounts.I believe Apple should have at least the decency to contact affected customers via email. We are left in the dark and the only way to notice it is by paying attention or hearing it from third sources. Their ‘don’t care’ attitude makes me seriously angry. I can understand completely why developers don’t have faith in the App Store.
Brick and mortar analogies aren't always the best because there's different frictions in the physical world than the virtual one, but if Best Buy stopped supporting a Sony product I'd bought from there, I wouldn't expect them to tell me. Sony might want to tell me where I should go for service if a major provider dropped out, but more often that not I show up and and get told "yeah, we don't carry that anymore".
Different people get set off by different things, I understand, but this doesn't push me over the edge. I don't think an honest dev needs to sweat it.