Why Guido Fawkes was acting as Nadine Dorries's bagman?

Back in September I asked why Paul Staines (aka Guido Fawkes), the self-styled scourge of all politicians, was acting as a bagman for a Tory backbencher.

This afternoon Paul Waugh offered a possible explanation:

Some of Mr McBride's money will end up in the pocket of his nemesis, one G Fawkes. As part of the £2,500 costs, it seems that Paul Staines (the man behind the beard) charged Ms Dorries' lawyer Donal Blaney £75/hour for serving the legal letter on the former Number 10 man.