I would leave positive feedback for a received freebie but not negative feedback for one that wasn't received. After all, you didn't pay for it; so this is one case where the sender should always get the benefit of the doubt.
More importantly, if the fragrance you receive is not to your liking, leave scathing negative feedback. Nobody should be subjected to bad fragrance!
No doubt the penal code will soon be amended with more regulations to clarify, verify, monitor, and enforce the generosity of strangers.
Also up for grabs: a selection of Bond No. 9, including Wall Street, Harrods Amber, NY Amber, and some others that I can't remember at the moment.
Also, I do not ship to red states or to people with glass eyes.