But it is a fair question to ask. Tesla Models S and X can use CHAdeMO DC FCs with a $450 adapter and they can use J1772 EVSEs w/their free included J1772 adapter. But, Leafs can't use Tesla Superchargers at all and can't use Tesla wall connectors without an adapter...
Nissan or their dealership proxies have every right to limit the use of the EVSE and CHadeMo they paid to install to whomever they see fit. And not uncommonly, they do just that. GM does the same.
CHadeMo or J1772 placed with public funds should be open to the public without discrimination. That includes LEAFs, and it includes Tesla cars. Use of public funds that excludes Tesla is unfair.
The Jdapter is using without permission EVSE paid for by Tesla, and by extension Tesla owners, for Tesla use.
This all strikes me as straightforward.
I will comment on this portion of the debate. I have heard this many times from Tesla owners, who believe that they have every reason and right to use CHAdeMO and J1772 (both adaptors are available from Tesla), but it’s NOT ok for any car to use a Tesla station with an adaptor. Many Tesla owners who share this view are quite vocal about it.
For the record, those big, expensive Tesla Superchargers cannot be used with JDapter Stub™. Most other non-Supercharger stations are owned by private parties, and their maintenance, insurance and electricity cost is paid for by the owner. THAT INCLUDES LOCATIONS WHERE TESLA PROVIDED THE CHARGE STATION TO THE OWNER / OPERATOR.
To use any charge station, whether Tesla or otherwise, it requires the approval of the owner / operator. If that charge station is held “open to the public”, then its ok for you to plug in.
If the station is behind a locked gate, or otherwise secured, or placarded as PRIVATE, or for GUEST USE ONLY, or some other restriction, then PLEASE, abide by whatever that restriction may be. Or, ask to use it. The worst they could say is no.
None of this is earth shattering stuff.