I can't see that as being a troll although it was a very mild flame. Assuming it was the same guest, it reads to me as a knowledgebale guest who had strong feeings on a subject. Guest said:

I can't for the life of me understand why anyone would be so insensitive to Paddy as to begrudge him the way he wants his life's work to be shared with the world. Good for Paddy not cooperating with your friend, I say. Not everything in this life is about the money, or making things easy.

Jim replies:

"Begrudge" is too strong a word. I just said I didn't understand it. It goes against one of the axioms I live by: that more opportunities are better than fewer.

The next reply by guest, the 10:46 one Jim mentioned:

Well, I'm guessing there is a reason why Paddy's put out a collection and you haven't, Mr. Dixon. Have the sheet music taped on the back of the bodhran, do you?

Reads to me as an annoyed response to the implication (I'm guessing that was the interpretation) that Paddy should live by Jim Dixon's axioms.

Jon