What are the consequences [+ -] for the volume run of a young site in social networks?

Question

Social media

Greetings.
There is a young site.
There is a person providing the service of posting links in social networks, blogs.
He has over 15K different accounts.
What are the consequences for the site after such a run?

Answer 1

Some will pass, some will be ignored.
Profit is unknown, people are different.
15k can be dead souls, you need group statistics.
Unique content + buying links is the best way to raise the site to the top in the search engine.
The theme of the site is entertainment?

Answer 2

If they click on the links and walk around the site, then it’s good, if they don’t or immediately leave the site, then it’s bad for the search engine.

Answer 3

From the point of view of SEO, most likely, none - neither a plus nor a minus. Social networks themselves have not played a role for a long time, since they learned how to "cheat" them cheaply. Behavioral ones can help, and again they can worsen everything - it depends on the site and the audience. But do not forget to put the metrics and analytics.