[gakada]

There's a difference between thinking something and saying it. You're entitled to think he is a rapist, you're not entitled to say it (in public, without some kind of qualification like "alleged").

It's especially bad form to make libellous comments on someone else's website, as you are making more work for the mods who now have to delete it.

[CWuestefeld]

You seriously misunderstand defamation law, at least in the United States.