Shut the server down or deface it and I'll believe you. Should be simple if you've gained shell access.
replyWow i don’t know… maybe modify the web page to have your username on it. No wow that is too hard for you leet haxers. Are you really this dumb you can’t figure out any of the hundreds of way to show proof?
replyBut they just showed you their proof. You simply did not accept it, which they might or might not care about.
replyI suspect that they in fact do not particularly care about what you think.