Well my biggest point is, it seems it would be reliant on a Social media like X and meta
This would make its decentralized system you have portrayed centralized.
And I definitely don't trust any Social media platform with privacy.
This point also made me wary at first, but the way I understand it integrating the OpenGraph protocol for transaction previews should only lead to a "nicer" visual representation of the payment link when published via social media or sent via messenger.