Unfortunately we may never know the real identity of who the hockey schtick is. They have protected their anonymity well. And no blame there. Why would't you protect your anonymity online? You have every right to. The only thing I can gather from their blog is that their initials are "MS". But who knows if that's even valid?
Hockey Schtick appears to be a chemical engineer by trade who last blogged on Feb 4 2017. Lately their twitter feed appears to have been hacked.