What exactly do dudes get out of defending girls they don't know on social media?
Do they really think these chicks are going to fly out to what ever state they're in let them hit?
Those guys you see doing those kind of things aren't getting any pussy in real life and are possibly socially awkward. From my experience, it's usually the guys making outlandish comment like "i'll eat your ass" that wouldn't even wave hi to a girl.
I never met a guy in real life who get's pussy yet stays on social media networks everyday commenting on some random girl's page.