Mike Schumann wrote
I can't believe that there isn't some serious enforcement going on.
Anyone who flies to Oshkosh and doesn't have the NOTAM with them
should get their ticket revoked for 5 years.

Probably the same sort of a deal that SnF had with the FAA back in the
1988-1992 era. "don't ticket the overweight ultralights". Those were the
years when ULs were the big thing at SnF, and if there was even the rumor
of FAA sanctions for the illegal aircraft, the place would have been empty.

Bob Moore