. . . who's there? Honestly... you really don't want to know. Mocking is easy, cheap, and rarely has it's desired affect.
Whether it's the hot girl describing the hot guy who's just rejected her.
Or the lame guy destroying the the girl with no self esteem, but who is simply far too good for him.
It might be the scientist making fun of faith, or the Christian discrediting the scientist. When it's done in jabbing jibes... no one wins.
It is just so easy to find fault. No one, and no thing is perfect. And if you want to find weakness, you can. It does not take a genius.
So don't mock. Don't even mock the mocker. It is better to wipe the dust from your sandals, and move on. Seek healthy. Search out the happy, and be content with who you are, and where you're going. And because you are not satisfied with the status quo, or how things are... be part of the beautiful solution. Stay strong and make you, your neighbor, and the world a better place.