They don’t do it against everyday people simply having a party or a charity fundraiser.
The NFL should be really proud of itself.
F em.
The “No Fun League” strikes again.
Similar with trademark, NFL is attempting to retain exclusive control over use of the phrase. I'm not sure they'll succeed in the long run, see "aspirin."
They really have no choice. Under copyright and trademark law, if you do not protect your 'property' it becomes public domain.