In answer to OP, I have read my T's book which uses examples from his personal life, I have watched an hour long interview with him online where he talks about his career history and various other things, and I Google him fairly often. I pretty much know everything about him that's in the public domain. Same with T1.
Do I feel guilty? Not at all. If it's in the public domain, he has made that choice. I do it to satisfy attachment needs and I see nothing wrong with it.