> According to the proposal, to use legally you had to be a member of s club, so no anonymity. The club could only sell what it produces and could only have a couple of members.

This is basically how it works in Barcelona, Spain as well. I don't think it's legal/illegal nationwide, but we have invite-only social clubs where you can only become a member if you know existing members. I think (but I'm not sure) there is a maximum number of members per club too.

And you don't "buy" weed there, but you contribute money to the organization, and you may withdraw this contribution in the future as weed.

Seems to work out just fine here.