there's some good interpretations here but I wanted to add my 2 cents to
"get it right, there's no blood thicker than ink"
I think that he was referring to writing a song, it being published. So, ink is not used like it commonly was before for newspapers, books,etc, but I think that Bono is saying to himself and other lyricists that they better not mislead their followers or say something stupid. When you have something published, you have people's attention. Say something that helps someone out even if it's a joke & you made someone laugh.
there's some good interpretations here but I wanted to add my 2 cents to "get it right, there's no blood thicker than ink" I think that he was referring to writing a song, it being published. So, ink is not used like it commonly was before for newspapers, books,etc, but I think that Bono is saying to himself and other lyricists that they better not mislead their followers or say something stupid. When you have something published, you have people's attention. Say something that helps someone out even if it's a joke & you made someone laugh.