The paid-only model makes the host a lot less attractive for this. The free trial accounts will likely become a problem at some point, but there's still a verif

The paid-only model makes the host a lot less attractive for this. The free trial accounts will likely become a problem at some point, but there's still a verified e-mail address, so the next step would be banning throwaway mail hosters, and/or limiting the lifetime of uploads by trial accounts.