I doubt it ,he does fly ALOT to earn status ,add a few sign up bonuses a year ,referrals and promotional bonuses and one can earn easily 1-2 MM miles and points .
But my guess is (tax experts correct me if I'am wrong) that reviewing different airline/hotel products could qualify as a business expense since that his full time "job", therefore most of this flying and lodging expenses are tax deductible.
Man I need to start a blog ....