I think the OP just made an honest mistake. I think the purpose he intended was to show that T works to make you feel better when you're male (and he's including FTM in that) but your body is not making enough of it.
Of course FTMs will pounce on him for comparing himself to one of them ... that's his mistake. It breaks one of the rules, because someone who's not something can not possibly understand what it would be like to be that something they're not, right? Isn't that what a lot of ignorant cis people who don't understand trans accuse trans people of (ex: "you can't possibly understand what it's like to be a man because you weren't born with a penis!")?
I'd just let this one slide and not turn it into a federal case.