The only reason why this pilot got busted is more than likely because he crashed! If he didn't crash the likelyhood of him getting caught based on the alleged charges would have been very slim.
Curious to know if the previous owner of the aircraft questioned the pilot credentials, prior to realesing the aircraft - not that it's a legal requirement although there would be a regulation somewhere relating to duty of care. Bit of a long bow though.
Lessons learnt in either case.