The well-known social network VKontakte has introduced a new solution from spammers - registration by invite. This was announced in his @tsyplukhin twitter account:
Well, the proof itself:
The most interesting is that invites are not yet available for issuing. ')
ADF: In the official blog Durov wrote about the system of invites . I also wrote about invites: “A small number of users have already received the right to invite new members;others will receive a limited number of invitations over time. ”