65k words is way less than 15k words. It is only 11k-12k words (I know because of my posts). I have hit the character limit on several occasions (though only once with IC post; most is sheets/world info stuff). Long live multiple-posting due to lack of space!

As for posts containing 65k in [i]words[/i] - *points at a certain RP world info Compendium, currently at 104'344 words (592'201 characters) and still growing*