It really depends on what sort of issues or ideas the artist has and how they are portrayed in the work they produce. During the whole Michael Jackson case I still enjoyed his music (granted I wasn't as bigger fan as most). Sometimes however I can be genuinely upset by things like this. For example Rolf Harris is currently being investigated for sexual abuse, that shocks me to my core and I really hope it's found untrue, that man is a large portion of my childhood and I don't want to imagine anything bad about him. Whilst it does not change any of his work (animal hospital is still a great show to watch) it does inevitably colour it.
I think the issue a lot of people have is they have this fandom of a person, either because they grew up with them or they love their work. So when there is some kind of blemish on the artist then they feel the innocent trust they had in this person or people to provide them with entertainment is broken, suddenly they feel guilty for liking this persons work because of the type of person the artist is.
I think the issue a lot of people have is they have this fandom of a person, either because they grew up with them or they love their work. So when there is some kind of blemish on the artist then they feel the innocent trust they had in this person or people to provide them with entertainment is broken, suddenly they feel guilty for liking this persons work because of the type of person the artist is.