It really says something about your character when you out right defend someone who is willingly harassing peoples family members. You don't care because you want to participate in his tournament? You don't care because he has done nothing to you?
It's not an internet fight or some petty insults on a forum when this person is going after your private life and personal information, if you don't think that deserves punishment then you are too far gone all ready.
It's all fun and games until you are the one being targeted.