It is surprising that as sole guardian of the girls, he would run the risk of them going into the state foster system just so he could get (illegal) lolz online. That's very irresponsible and I have no sympathy for him.
The publication weakens the whole movement. "See, they don't really care about those things they say they do...and neither should you. Look at how weak they are for cooperating with us!"
It supports law enforcement's narrative that Anonymous is a group of criminals with no honor or allegiance to one another.