I would guess that the format negotiation for clipboard data has something to do with that. You cannot negotiate when the originating app is not there anymore.

I would guess that the format negotiation for clipboard data has something to do with that. You cannot negotiate when the originating app is not there anymore. But then, is it a real problem? I understand, that some users might be inconvenienced by that, because they got used to it in their workflow... but is it really a showstopper?