WD does take all of everything off... thats the point. Go ahead and splash oil or chain wax all over everything if it makes you happy. If WD destoyed o-rings and chains, why would I still have a stock chain from 10 yrs ago? Every o-ring is intact.
daamn homie calm down lol if you like your wd-40 rock on dude I:I, i just got a can of maxima chain was and looooove it, very nice stuff.