I feel the same way. Some of my fondest travel memories are staying in airbnbs.
But in the past few years, at a seemingly accelerating pace, what an airbnb is has changed.
In the last few years when I've used them, not all but almost all of them have simply been unlicensed hotels run by investor-landlords who aren't present and at best will pay someone else to come meet you with a key, but usually just leave it in a lock box.
Everything feels cheap, and sketchy. There is no personality. You're not meeting anyone, getting local knowledge, living with a local. On the contrary, you're sometimes sharing the same apartment with other tourists.
If I don't get any of the good sides, all I'm left with is the downsides - unpredictability, suspicion from other residents in the building, the plethora of random ways things can go wrong when your host isn't available to help you out 24/7.
I'd honestly rather just pay the extra 20% or so for a basic hotel room to get the same thing but without those downsides. Booking.com or Hotels.com are now the places I go first, before Airbnb.
I'm not at all sure that Airbnb care about this to be honest. They obviously must be aware of it, yet it continues getting more like that, not less. I guess the growth and the numbers from running a cheap unlicensed hotel rooms service is just better than they could get from their original vision. Wish them well, but also wish the old Airbnb was back!