Comment by pbhjpbhj

I think I'm about where you are in all this, I see NC (restrictions that activities are non-commercial; like CC-NC) as being 'open source'.

Sure, I can't take your work, cut you off, then sell that work as if it were my own... but without explicit encouragement to do that (*), honour should inhibit that.

(* I'm aware some licenses give explicit encouragement to commercially exploit -- I just don't think that is the boundary for open source)