The big problem is that while under current law it's pretty clear that this stuff should all be fair use, enough people want it not to be that interpretations a

The big problem is that while under current law it's pretty clear that this stuff should all be fair use, enough people want it not to be that interpretations and/or laws will possibly change. These laws pretty clearly did not anticipate this sort of thing, so it isn't possible to affirmatively say that anything will hold going forward.