I feel like as such a massive U2 fan I should try to defend him more [Grin]
Sounds to me though like OP went searching for Bono, found a few threads online, some full of misinformation and instead of googling what is true or not just took others word for gospel.
I do believe he is sincere as well and I don't believe he does what he does for publicity. Bono is well known for keeping his family out of the tabloids as much as possible. He doesn't try to shove his private life in people's faces like many famous people. He did not need to invite EODM on stage for publicity. Why would he? He has all the money and fame he needs. I understand people not liking him, I really do. But I will never agree with the fact that he isn't sincere in what he does.
For example, my FB was full of people moaning that there was a picture in the paper of U2 laying flowers for the Paris victims. Do people honestly believe they called the press and asked them to come along so he could get his face in the paper? If they had caught Brittany Spears doing the same it would be all over the papers as well. But hey.. Bono... he must have organised it all because he needs so much publicity, it isn't like their tours sell out world wide straight away or anything! The truth is, they were due to play in Paris, why not lay flowers? I would have done if I was there.
Like him or hate him. Inviting EODM was not a publicity stunt.