packages with orphaned instances only

[Christian Maeder]

Hi,

referring to previous messages about QuickCheck and Johan's proposal
about moving instances I wonder how many of us have created obviously
orphaned "Arbitrary" instances for container data types?

Maybe indeed separate packages with (orphaned) instances only should be
created for re-use. I haven't seen such packages on hackage, yet. And
maybe such packages should be clearly recognizable.

So is this a bad idea?

Cheers Christian