Vacation style rentals are generally crappy properties, whether on Airbnb or otherwise.
I think Airbnb has become worse as these types of properties have become common on the platform. The best experiences on Airbnb are, and have always been, people's personally owned homes.
The ones I've stayed in usually have dozens to low hundreds of reviews. They often have picky hosts that don't do instant bookings, and they're the type of properties that wouldn't be physically suitable for parties. And often the owners are in the same property or close by, meet you in person, and they'd know if something fishy was going on.
I think Airbnb has become worse as these types of properties have become common on the platform. The best experiences on Airbnb are, and have always been, people's personally owned homes.