The blockchain is a terrible place to put anything that contains arbitrary human readable text, like URLs in this case. The append only aspect of blockchains m

The blockchain is a terrible place to put anything that contains arbitrary human readable text, like URLs in this case. The append only aspect of blockchains means that if someone posts URLs that contains information that is legally required to be removable in some circumstances, the entire blockchain could become illegal to reproduce in some jurisdictions. For instance, if someone registers www.emanuel-macrons-personal-phoneno-is-888-8888888.xyz that could be a GDPR violation and thus that URL would need to be removable by EU regulations. And it's just not GDPR, that's just the most obvious example.