There are at least two pretty different kinds of rentals that go on on AirBnB, though: 1) people who live in the apartment sometimes taking in visitors for a few days; and 2) people who don't live in the apartment, renting out an apartment on a regular basis.
Sometimes those in #2 get consolidated so many such units are operated by one person, making more or less a quasi-hotel. And having hotel units next door to you is somewhat different than having an apartment with a long-term tenant next door to you, which is presumably what you signed up expecting.
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There are at least two pretty different kinds of rentals that go on on AirBnB, though: 1) people who live in the apartment sometimes taking in visitors for a few days; and 2) people who don't live in the apartment, renting out an apartment on a regular basis.
Sometimes those in #2 get consolidated so many such units are operated by one person, making more or less a quasi-hotel. And having hotel units next door to you is somewhat different than having an apartment with a long-term tenant next door to you, which is presumably what you signed up expecting.
I have little problem with them changing the rules on the second situation you listed but the first is the one that's problematic.