Rather than performing punk or singer/songwriter or folk rock, etc. in a place that clearly is for people who want to hear traditional folk music, why not just find a venue that is amenable to what you want to perform? There are few enough venues any more that specialize in traditional folk so for God's sake let them be. There are lots of opportunities for punk, singer/songwriters, etc. It isn't a question of debating the merits of one form or another, and while it may be true that traditional folk is dying out (I hope not) if there are still clubs dedicated to that type of music, punk isn't going to please the audience.   Plans are underway now where I live to get a small traditional concert venue going and we will be quite clear that we'll give preferences to people who perform traditional music as opposed to singer songwriter, etc. We specifically want to provide a venue for this purpose and will make no apologies.