@Leonard858
It's clearly not kosher to do this, but in a practical sense, a two month rental is something that really should be contracted separately, because under the law in many countries, 2 months is considered a long term rental and subject to a completely different set of regulations, which the basic Airbnb contract cannot possibly cover, as it is tailored specifically for short term rental.
Furthermore, if the host is on the "split commission" system as most hosts are, then it actually means a substantial discount to >you<, not the host, since >you< will be paying 15% of the base rental rate to Airbnb on top. It only saves the host 3% (depending on the deal the host is proposing).
It's more likely a contractual and/or local residency law issue that is behind this. Airbnb can't offer the proper legal protections to either the guest or the host.
I'm not suggesting that you should engage this, nor that you would be safe to do so, only pointing out that there's more to this than meets the eye.