Airing dirty laundry is in some jurisdictions a legal offence. Which is exactly why there needs to be agreement spelled out in contracts upfront, that this could happen, and the client would just sign it.
And I am a fan of smart contracts and cryptocurrencies, see my suggestion below:
In the UK, the place where the site in the original link is, it's okay to state facts about a business transaction in public if it's not a malicious falsehood, a violation of contract, or a violation of privacy laws (e.g. sharing emails or recorded calls). But yes, I agree, the issues leading up to this should all be tackled by the contract up front.
That said, there have certainly been situations where builders have gone back to properties and taken back their property (like tiles from walls, joinery, etc.) but I have no idea how that pans out legally as it's outside my wheelhouse.