I think your first sentence (I sadly booked a flat in London that seemed too good to be true and it definitely was) says it all, really. I'm not once to ignore my gut instinct and you don't come across as the type who would either, @Andreya3. Thankfully you carried out your due diligence so didn't come a cropper.
The 'good' old days of Airbnb really caring about its purpose is long gone; it's now a money game, nothing more. Time after time you'll hear one of the execs chirping up that the latest 'release' is a 'game changer' and that they've listened. I fear, as your experience has highlighted, that's simply not the case.
Yes, there are heaps of decent listings, but there are untold un-policed ones too, and let's not even talk about the multi-property listing business who just want to vacuum up the business.
Belong anywhere? Yup, it appears Airbnb isn't really that fussed about where you land up, as long as you've paid the fees.
Money talks.