In the real-estate world the "asshole" would rent it out to others (such as taxidermist or baker) for cheaper until She'll or BP would show up. I guess in the w

In the real-estate world the "asshole" would rent it out to others (such as taxidermist or baker) for cheaper until She'll or BP would show up. I guess in the web world this is equivalent to the trashy ad-filled sites you see on parked sites. Why is it? I guess maybe taxidermist and bakers of the web are cheap and would rather pick another domain. Or is just not possible to legally 'rent' out a domain.