Silas: There's a difference between being straight and being brutal. Personally, I wouldn't tell someone that we would consider booking them if I had no intention of doing so. But neither do I think that 'you're not good enough' is a necessary or helpful response - unless, as I say, they actually asked.

To use lively's analogy, there's a big difference between 'you're not my type/I don't fancy you' (//'not right for this club's audience') and 'you're not nice/not attractive'.