What does the anti-gang unit mentioned in Beijing Boran Bar mean?

Wow, an anti-gang group, is a post-it organization to protect the well bar from black harm.

Black is a boring person, who comes to the well to make trouble. Send disgusting pictures, paste old posts, post without format, etc. )

Recently, many black people came to the well.

Alas, Jing Bo ran red, and there are so many jealous people.