That's a terrible idea. You are moving the wear onto a different set of spring/compression contacts that are much more expensive. That makes no sense.
It does not hurt anything to just leave the whole mobile cable plugged in there at home and hanging on a hook on the wall. I've been doing it that way for nearly 6 years. Most people don't use up over 200 miles driving around their town in a day. When you are going to go out of town on a trip every few months or so, sure, unplug it and take it with you, but that is far less wear on any kind of contacts than daily.
Some people tend to forget this about the daily driving scenario. That mobile connector is only for plugging into outlets. If you do need to charge somewhere in your city during the day, when would you ever have to resort to an outlet? Superchargers, CHAdeMO, J1772 public stations, Destination charging wall connectors: these are usually available somewhere in town if you need them and none of them use the mobile connector to plug into an outlet.