Just for sake of comparing apples to apples, racing is not a track day and a track day is not racing.
Also, an engine not blowing at the end of or during the season does not prove there is no unnecessary wear and damage to said engine.
and now my .02 cents are over
Lol I was just humoring him... But if I were to take these drastic measures to "save" my engine by changing the oil for every ~2 hours of use, I would first do a periodic oil wear analysis to ensure the engine is operating safely and able to maintain maximum performance. People just spread misinformation cause they heard it from someone who knows someone else whose uncle's cousin is a top engine builder