I assume the concern is to prevent discrimination. That's good, but perhaps this is not the way. Maybe the Airbnb team could look at metadata from diversity in the requests vs host's booking acceptance and also complaints.
I have 4 rooms in my home and visitors stay 1-5 months, not weekends. It makes more sense for us to get to know each other a bit beforehand. In conversations with guests after they arrive, they say they feel more comfortable getting to know me and the property beforehand and feel more secure that I'm paying attention to the balance.
It's also important for me to find out where the guest will be spending a lot of their time in DC (work/internship) so I can make sure they know what the public transportation commute will be like and what it will cost on a daily basis so they can make a sound financial decision.
If it's not discrimination concerns and it's more profit concerns (more like a hotel booking than a homestay) then this is wrong. It's now discrimination against the hosts who've helped maintain the brand for years.
I've been a host for 3 years and have superhost status and I live with my guests for 1-5 months. That's a whole other level of service than telling someone how to use the doorlock, the house rules and where the toilet paper supply is. I am getting more from referrals from former long stay guests than from people who find me through the platform. They usually contact me via email and then I refer them to the platform to my rooms.
We who live with our guests for long periods of time maintain the brand with consistent quality on a whole other level. We deserve better visibility.