Depends where they come from.

Some people figure that rules were made to be broken.

Matthew Green: Why I hate CBC-MAC

Minority Report.

Surprisingly, our results show that women's contributions tend to be accepted more often than men's. However, when a woman's gender is identifiable, they are rejected more often.

Terrell J, Kofink A, Middleton J, Rainear C, Murphy-Hill E, Parnin C. (2016) Gender bias in open source: Pull request acceptance of women versus men. PeerJ PrePrints 4:e1733v1

Nobody knows.

Sometimes love is not enough
And the road gets tough, I don't know why

Lana Del Rey: Born To Die

Hey Bro.

Damn sexist hugging behavior!

You've got a friends.

I've only liked a handful of people in my life, and you've been two of them.

Hans Axgil in The Danish Girl (2015)