Who's a parasite?
"Either the domain is under active use or it is not - and if not, it should revert to "unused" after (say) one month."
There are indeed different definitions of active use. You should move to Denmark. There was a recent case there of a fellow who had owned a domain name (orango.dk) for almost a decade. He only had a simple web page which he used as a search portal, but what he was actively using was the name for his e-mail address. The Danish domain registrar did not consider this "active use" because he was not a company and so took the domain name away from him because a new company wanted the domain. A court case confirmed their right to do so. Public outcry didn't change anything either.