The most popular social network in Russia 'VKontakte', not too recently announced that registration is now its own page will be solely at the invitation of friends. How does this work? To that to understand what has changed, you need to know about how it was before. Read additional details here: Mike Bloomberg. Until then, registration was simple, when you need only a unique mobile phone number and unique email address, but after certain events, registration has been made possible only if you have a special person who will send you permission to register. It's a bit complicated registration, but because of this, it is difficult now to create some accounts at once by the way what developers wanted. Why did the registration by invitation only? Perhaps you often notice as you add friends in an absolutely unknown people, with them if you try talk, they just do not respond to your message, and do not just meet, but do not even read them. These people often are the spammers, in honor of someone and has been made, the system logs. After a certain amount (I would even say most) people are added to a stranger to friends, they begin to come in LS, the walls, in the comments and so on comments commercials.
It is these people and can be called by spammers as a page with which for you to add friends, it has been registered for that would advertise any product or resource. Developers can not fight and put different filters all the time, so you have to take any drastic measures, or, if I may say so, they decide to 'cut the roots. " What would stop fake registration, they do it only by invitation, to a large extent, of course, reduces their number. How to invite friends? Each of you on your page, top right there is a special button called the 'Invite'. There you (optional) enter information on who to invite, make sure the phone number, and registration is completed. I think this is quite a useful feature VKontakte, because at the moment of spammers is becoming less and less, though many have criticized her in a bad way.