At your suggestion, I did the Google search. I did not find an 'overwhelming consensus'. There are some sellers who are motivated to allow it for complex reasons (public perception, value of sell-out crowds which allow TV broadcast of sporting events and ancillary sales. e.g). The fancy term 'allocative efficiency' which is econ-speak for 'we should always sell to the highest bidder' is described as a positive outcome of scalping. Personally I find that nauseating, and of no real value to (original) providers (sellers) such as entertainers. There are first-person interviews of entertainers distressed by the way scalping impacts their fans.