There was a woman at a city council meeting a few years ago who lived in a building with around 10 units, and she said six of them were on AirBnB. When ever she checked, their (small) pool always had people in it she'd never seen before, and never would again. People buy places to live in and make a life in, and then half the building is party people.
For what it's worth, this has always made us extremely wary of AirBnB, and we do a lot of research for cities we visit before we rent an AirBnB somewhere. In Montreal they're regulated, so we had no problem there. In Reykjavik, we rented from a woman who was staying at her mother's place to take care of her pets while she (her mother) was out of the country, so our stay wasn't depriving anyone of housing.
Other places we go, where AirBnB isn't as well regulated, we're very particular and tend to go for hotels (e.g. Ottawa, Seattle) because we're very aware of how bad these kinds of systems can be for people.
This has to be repeated. There's no point in living without some level of quality of life. Having everyone trying to raise their family, do their school work, study, or just try to sleep, in what are essentially all becoming hotels, is just not something we should strive for.
One could even argue you're going to end up in a world where success in life is tied to wealth, not because of all the reasons commonly associated with it, but just because one group can actually sleep at night and one can't.
In cities such as Reykjavik and Vancouver, they could tax Airbnb and divert the funding to create more housing, but housing construction is a physical process that takes time. Meanwhile in the short term rents are spiking.
Sure, there are solutions. There's a huge housing bubble right now (which will collapse whenever tourism dries up), for instance. Maybe if it keeps on this way some legislation will be passed to get it under control.
But both of those solutions are completely out of the hands of the people who actually can't afford to live in the city where they work.