This seems to get too complicated for a changeset discussion. Let's continue in the forums (but not today).

I think ':lanes' is the wrong concept here. We're not tagging a lane-dependent property as the ':lanes' Suffix suggests.
Isn't the fitting terminology "parking on the carriageway"? 
Maybe something like:

parking:carriageway:restriction = no_stopping

The term "carriageway" is already used in OSM referring to the main part of the road that is used by cars driving along.

