I had a related experience where the host asked me to change my average review, but didn't try to bribe me (Italy, booking.com). A friend of mine had the same

I had a related experience where the host asked me to change my average review, but didn't try to bribe me (Italy, booking.com). A friend of mine had the same bribe experience (Airbnb, Israel) with a terrible accommodation (moldy, dirty etc). In hindsight, why wouldn't they? Even if their reviews tank they can just register again with different credentials.