I had a friendly chat with Drex today (*he's a very nice guy, BTW). I had asked him about his closing line these days - adding "hello to shut ins".
He explained he has been using Jim Robson's famous "hello to shut ins", like the old Canucks Broadcasts as an homage to Robson, number one, and two, it was suggested by our very own Donovan T., who hangs around here. (*Donovan is an incredible guy - and blind, but he is unstoppable).
So - the bottom line is Drex is paying tribute to Robson and a lot of people that can use the shout out - and not lifting a phrase, so to speak.
I think that passes muster on all counts.