What I do not get is why the airport would allow that sort of things. I can understand that providing wifi is a cost that should be mitigated for someone like M

What I do not get is why the airport would allow that sort of things. I can understand that providing wifi is a cost that should be mitigated for someone like McDonalds who is running razor thin margins, but considering the cost of operating an airport trying to monetize wifi will probably never make an impact on your bottom line while annoying your users certainly will. It just seem like a foolish move to me. What am I missing?