Yes, it's bad, but it
is the internet, you take risks posting pictures... my friend had this happen to her, and we all got a great laugh out of it because they called the horse a 16hh mare named "Daisy" and the horse is really a 17hh gelding with a fairly manly name.
Honestly, I'd be a little mad, but in the end you know that
you own Janie, nobody else, so don't get too upset about it.