In Italy it’s a crime punishable up to 12 years to access any protected computer system without authorization, especially if it causes a DoS to the owner
Consider the case of selfhosting a web service on a low performance server and the abusive crawling goes on loop fetching data (which was happening when I was self hosting gitlab!)
https://www.brocardi.it/codice-penale/libro-secondo/titolo-x...