To pick a more extreme example, what about Terry Richardson? There's a case where I don't think you can possibly separate the artist from his work, and the artist himself devalues the work. Nicholas Nixon, from the articles I've read, is in his personal life a creepy perv, but his work is not about that, at least the work of his I'm aware of. I don't think his work should be purged, or blacklisted. I do suspect that once the allegations against him have been adjudicated, they will become a permanent part of his biography, so whenever anyone looks at "The Brown Sisters", they'll read "1970-2010, photographer: Nicholas Nixon, born 1940, a photography professor at MassArt where he taught for 20+ years until he resigned as a result of multiple incidents of sexual misconduct toward students spanning much of his teaching career" or something to that effect. I do think that there are very few instances where artists and their work should be confined to the dustbin/storage room. Nazi artists who created works for the Hitler regime are one of the few examples. And history has done that on its own fairly well - who remembers the names of or the works by Nazi artists unless you're a WW II history buff? Outside of Leni Riefenstahl. But she's proof that a body of work can be so exceptional that it overcomes the taint of her political associations. But even now, when people talk about her, it's "Leni Riefenstahl, the Nazi cinematographer". The taint doesn't go away, ever, but the work stands. DW Griffith is another - just as I have seen excerpts from Triumph of the Will, and can understand and appreciate what it accomplished as a piece of cinema, I've watched a decent chunk of Birth of a Nation, and I understand how revolutionary it was as a piece of cinema - if you are a film student, you absolutely should watch both of those films to grasp their use of camera and editing techniques. But the politics of both (Naziism, racism) are so abhorrent that I have not been able to stomach watching them through to completion, nor will I ever try to.