Kieron Gillen on “Billy’s brothers”.
See? This is what I dislike when it comes to new things. Same happened when I started reading New 52 in DC. I don’t get why they had to remove Billy’s brothers "because of reasons", sure they never got names and they never seemed to be very important in the comics; heck, we never got to see them in a single panel, but they still tell a lot about Billy and his personality.
Personally, I think they are a piece of the big puzzle Billy’s life is. And I just really hate it when writers think they can erase/delete/kill without reason this or that character and expect us to forget about them.