It has been used for many years to promote communities on social networks.
The principle is based on the georgia phone number library fact that the most common actions - like or subscribe - are performed by a program, and not by a real user.
Moreover, on a massive scale and according to specific criteria.
Who needs this and why?
When one person clicks “like” or “follow” on another person’s profile or community, they are drawing attention to their own account.
And everyone who goes to it and finds the content interesting can subscribe in response or like the posts in the profile.
Auto-subscription on Instagram works perfectly.
But it’s not suitable for everyone – only for newly created accounts or business communities with a large audience.
As for Facebook and VKontakte , just one click will not be enough.
Here you need to first create a list of community accounts and profiles of people who fit the project's target audience, and then send out invitations to become friends and automate the mailing list that will invite people to the community.

Why might it not work?
If users who receive an invitation start complaining to technical support, the account with the mailing list may be blocked.
Most often, brand pages and online stores are subject to such blocking - any messages from them are considered spam or advertising.
Before 2013, mass following on VK and FB gave approximately 10,000 subscribers per month.
But back then, users weren’t so sophisticated, and since then, social media algorithms have become much stricter.
If you do not engage in mass following on Instagram and other social networks aggressively this year, the flow of subscribers will be stable and in much smaller volumes.
The settings have changed and there are limits that need to be taken into account.
What is the real purpose of mass following?
Its task is to attract the user to the page.
But whether he becomes a subscriber or a buyer immediately depends on your content and service style.