Silliman's post about audience today was very interesting. I've noticed the same thing.
A lot more people laughed when I read to a mix of poets and non-poets at a coffee shop than when I've read to a room full of MFA poets.
The funeral audience versus the party audience.
Education as the sometimes enemy of poetry.
Legit versus legitimacy.
Bugs Bunny as the hippest of the hip versus the poet priest presiding over a funeral.