As a nitpick, cryptocurrency payments are pseudonymous, not anonymous. The current AML system is good enough and prevents cryptocurrency crime as efficiently as they prevent other crime. Also this is not about preventing crime, this is about setting a reporting requirement to an inpractical limit of zero euros. Nobody is going to do crime with 10 EUR PornHub or gay condom purchases.

What would you consider an accetable reporting requirement for all of your transactions?