has enyone realized that blair/leighton has this weird problem with her legs from knee to toe and they look a little like chicken legs

I understand what you mean, LOL, but I think she just has hyper extended knees.

That's where, from a side view, the leg goes "straighter than straight" when the knee isn't bent and fully pulled up, when most peoples legs would be straight. Sometimes, from a front view, that causes there to appear to be an outward curve in each leg, making the "chicken leg" look you mentioned.