I looked up "die-hard fan"
die-hard fan
A die-hard fan is somebody who is completely 100% obsessed with their favorite game, band, movie, etc. these people wait in long lines, in the blistering cold, just to bring home the new "thing" they are fans of.
I am sorry but I am not a die hard fan. I have been listening and collecting DS & MK for nearly 30 years, but this is already recognized as an obsession that (perhaps) hurts only me. But when it comes to a person, I always try to put myself in the famous person's shoes. If one's fame means that he has to take everything from his fans (and in this case someone else's fans) I would feel so frustrated, outraged and tired of the human race that I would close, gently, every door of communication.