He got it with kelly and he was exposed.
He wants Costello because he wants to get DCB to disclose commercially sensitive information on air. From what I know the actual income for DCB from all sources is not too far (about €140,000) ahead of Tipperary.
He employs some interesting linguistic tools and devices - eg he says that what he says on twitter is not journalism yet his articles often repeat verbatim the contents of his tweets.
He says he has never been bitter or mean or disparaging about the team yet his tweets and articles (sure winning loads of all Ireland’s are the least they can do with all those advantages/how can they get any enjoyment from what they do/the most manufactured hurling team ever etc) are full of examples. When showed these comments he claims they aren’t, as if no other Irish person can recognized back handed complements.
Then there is this liking tweet thing. Even if you accept it was in error, his liking the sarcastic second tweet is damning and he must think people are easily fooled for him to claim all innocence on that. That’s before we even get to this persona on the Kildare fan forums or his odd paranoid rants about how the GAA are denying him access to match’s/croke park/information.
So maybe it is him tying to save the GAA from itself, or maybe he is just bitter and twisted and cannot stand his neighbours winning all the time and tries to belittle it any way he can.