My argument is, and always has been, that there are no benifits whatsoever to road tyre users using nitrogen over air. You come waltzing in with your latest internet harvested clever comment and expect people to just accept it as gospel. OK, since you've asked, lets go back to the old molecular size issue. Tell me, in your infinite (google) knowledge, what this tiny, tiny difference makes to me, the average car tyre user, and whether I should pay £5+ a corner to have my tyres filled with the wonder gas. Or is it the moisture content of air I should be concerned with? It's a fucking car tyre, not an aeroplane tyre. The trouble with you is, you are so caught up in trying to come over clever and superior (at which you fail, miserably) that you don't actually read the nom.
And just to clarify, I'm not vexed with "this" - just you.
And you can fuck off too.