I've always thought of you as beyond gender really. Anyway, this seems more like a medical condition which commonly afflicts people unfamiliar with Coco's behaviour on the board.
Diagnosis: User "BestSportsEntertainer" (hereafter BSE) is still too green (hah, see what I did there) and is attempting to understand the behaviour of the user "Coco". Coco is known for claiming to uphold absolute rationality at all times, even when said behaviour confuses other members, often either to their amusement or annoyance. Previous victims include Stormtrooper and even Mediator Ollie himself.
Initial suggestion is for BSE to learn to ignore Coco and stop taking rep too seriously. Since Coco offered no point to discuss within the rep message, it is the opinion of Mediator Ollie that Coco simply felt BSE deserved a red in return for a green, thus meeting the requirements of the verbal agreement hereafter known as "rep 4 rep". Once Coco fails to get a rise out of BSE, Coco will move on and find another poster who actually provides some entertainment.
Suggest for treatment that Coco personally handle the additional dispensation of a mixture of red & green reps to BSE at random intervals with no clear explanation, so that BSE builds resistance to the affliction.
Any other mediators with further suggestions should provide addendum now.