The flip side to that though is that due to the case being very unlikely to be proven we fall back to the default position of "innocent until proven guilty". Otherwise we can effectively ruin someones reputation just by making an accusation. I do not know if he is quilty or not, but unless it can be proven then I do think he should be treated as innocent. Is it fair that his reputation is now basically shot?
In this case, given that the victim hasn't been allowed any anonymity either, I'd say yes.
Both parties should either be totally anonymous, or both named.