I wasn't implying it was, it was merely an example of a guy being a complete tool for the sake of acting professional in a completely non-professional environment. It's just irritating to see people that are talented, or even not really very talented, in pretty much any area of anything that like to come across as special because they happened to have had rather alot of practise at it. People that have a natural knack for whatever it may be are in the minority, and people that are good at things have mostly had to develop that talent. Plus it's that kind of attitude which makes us young people not bother with anything, probably cos they saw some sod on youtube doing it much much better and decided they wouldn't bother trying, when you do try your probably going to be branded as "epic failz" cos you most likely won't be very good at it to start.
Anyway, all encompassing rant aside, it just irritates me when the solution to someone not being able to do something is to **** them and find someone else. The view of most singers I've spoken to that aren't up their own arse is that pretty much anyone can sing with the right attitude and approach. If you've been trying to do something in a fundamentally wrong way, then no matter how long you practise at it your practising the wrong way and aren't going to get any better. Maybe if this guy gets some help in the right direction then he'll improve.
It's pretty simple though really, if he wants to stick around and see if there can be any improvement then he should. If he can't be arsed he shouldn't and will save alot of unnecessary frustration.