Every specialist media outlet and every live event, across all musical genres, has a sense of its own boundaries, defined by an individual artistic director, a committee or a constitution. Those people are 'gatekeepers' only to their own productions - there are no gatekeepers, official or otherwise, to the world of folk music, and it's irritating to find the word coming up repeatedly in a pejorative sense.

Ian Anderson would be about the last person in the world to define 'folk', having invented the phrase 'roots music' specifically as an alternative to what he saw as a uselessly imprecise term.