the argument in this case, Ken, is they've had a deliberate campaign to seek out victims of people in showbiz whose actions may have been uncovered. Savile was never named as an abuser in his lifetime, and look where that's got us. If Roache hadn't been named, and Travis and Harris and all the rest, we'd be none the wiser about what appears to have been at worst a great conspiracy of showbiz silence.
So that's why I think we need to know. I'm not sure any innocent person's life has been ruined but many have been damaged, and that is a possibility that must be borne in mind.
Jefferies is one such - but the problem there was with the press, not the justice system; I think the two are getting a bit confused in this thread
http://www.theguardian.com/uk-news/2013/dec/23/christopher-jefferies-itv-drama-lost-honour-joanna-yeates