I have a domain that I bought about 3-4 months ago. I just started thinking of using it, but noticed that subdomains from this domain is still up and active. How can this be? If I own the domain, how can others still have sites up on its subdomains, that I have nothing to do with? What would happen if I create the same subdomain on a new site? Would their site get removed? Going to test this on one of the subdomains if I can find one that is still up but not used anymore, just wondering if anyone know what the cause of this could be?