I agree that some of those performers who do exactly the same act every night will be "found out" much more quickly especially as there are now already many live streams available.

The Edinburgh Folk Club has been broadcasting some of their gigs for some time time and other clubs too. However, the videos don't quite convey the same atmosphere as you experience at the actual gig and, in many cases, can even make things look quite amateurish. The "raffle" is even more tedious than normal, for instance. :-))