I didn't know about his age, although I am aware there are different levels of research in every generation. I too have the first Ruppli Prestige edition that has quite a few omissions, and get the newer ones from a local library. There is no discography without errors or omissions, mine included. You should verify any information with a second independt source, if you can find one.
In the end I would admit that enthusiasm and engagement are more important than doing nothing. As I said, I appreciate his efforts.