28 is fine with me. Still younger than my old ass. 
And no one ever said that number of posts equates with intelligence (you made that up on your own), just that it should be related to how respectful you ought to be to established members like Mr. Macaque. People who run off their mouths without ever having made a contribution first are not the most respected people in the world of internet message boards.
And using lingerie modeling as your reasoning when that is not illegal for girls under 18 to do in the first place (which was the point of the Miley Cyrus reference, which you clearly missed since you think it has something to do with her already being famous???) does not make any logical sense.
As for me being a smartass to Mr. Defiant (nice attempt to try and get someone on your side, by the way), I simply pointed out (in an admittedly smart-ass tone) that rather than typing several sentences that pointed out his lack of clarity on what the rules are (in a post telling others what not to do, no less), a quick word or two typed in the right place would have been more fruitful.