It means Sad and Angry...most likely at the leak. Notice the poster claims to be from Dublin.....the point here is the band is sad and mad at the album leak.
This thread is a bit vague and confusing. It also does not discuss U2, and it's the forum for general U2 discussion, therefore, I am going to close it. pleba, if you have any questions or concerns, please direct them to me: Bonochick@interference.com