You might not need proof, but everyone else needs it. No one is going to believe it when some random person comes and says "they hacked my MSN!!". I seriously doubt StK would ever even consider hacking anyone's MSN account (or something similar) for just not being in terms with the person in question. I don't think they would even have the skill for doing the previously mentioned things.
PS. Yes, I understood you meant things like MSN hacking in your earlier post.
EDIT: There you see, StK did nothing.