I have not managed to read all the posts on this thread but I would like to say that when the Unthanks came to Caistor, we thoroughly enjoyed providing the support for the evening and found the band and all of those involved with them, very pleasant and not just 'in it for the money'.
If it wasn't for the organisers of live music events, there would be no gigs/concerts etc and each venue and organiser has to consider many factors to make the event a success. Sometimes places and people get it wrong but I believe it is much better to share your praise or criticism directly with those responsible. It helps improve and maintain quality and is also encouraging to get praise if an event is well-organised. Constructive criticism and praise where it is due. Keep music live and recognise hard work when it happens.