The reverse Tesla adapter is a great idea. As only Nissan and Mitsubishi are in Chademo (maybe Toyota) they could just put a rfid or Bluetooth adapter in it to facilitate charging. It would give good optics that Tesla is open to the EV world, while in practice limiting that openness.
2019 S Plus (98.06% SOH) & 2019 SV Plus (94.77% SOH) Both Silver
2013 Leaf SV sold 2019 with 11 bars
100 Mile Club Member (Number 87)
Max Miles on 13 Leaf: 120 miles
Max Miles on 19 SV+: 242 Highway miles @ 4.5 miles/kWh