Ok I am putting on my flame suit as I post this but I have been conducting a super secret test for the past two or so years or so and I figure no sense keeping it to myself any longer. I can't guarantee anything about it other than I never had to change the clutch or motor in either of my bikes and they both made at least what was expected power wise.
I ordered a small tub of powdered Moly a LONG time ago just out of curiousity when I first discovered how well it worked with firearms applications and then extended it to regular mountain bike applications and then one day got a weird idea and stuck about a spoon full in 5 quarts of oil and then poured in in my car at the time. Worked fine and no adverse effects. So fast forward to about two years ago and I decided to try a 1/4 spoonful in my old bike. Rode around cautiously at first expecting the clutch to self destruct or whatever and it never did... Then moved up to about 1/2 a teaspoon for the next oil change. Nothing happened... Not that oil change or the ones that followed for the next 10K miles.
So I get the 12 and I think well, it couldn't hurt. So I do the same thing (1/2 teaspoon) and here I am 13k miles later with the same clutch that was in the bike when I got it and I am assuming it's the stock one. The last two oil changes had a bottle of STP oil treatment added in (but not overfilled) for a dose of zinc with the Moly. Bike now has 24k on it and as far as I can tell, runs fine. Well other than the occasional liter bike show down (the bike and I are on a diet as we speak).
Point of all this... The talk of Moly being bad for clutches and whatever else in the bike is bull.