This sounds an awful lot like a Google search. The issue, like always, is who gets to decide what is credible? Is it algorithms, and are they public. I suspect long term you'd have OYO experts instead of SEO, and a lot of the same tricks would still apply.
Apart from the genuine OYO experts (that in itself is pathetic), you'd also end up with paid fake reviews and then again you end up with the situation where you can't trust the internet.
