how does someone with 15 posts have a huge following?

Q: how does someone with 15 posts have a huge following? did they use bots to build their instagram and sell it? while it is possible to quickly build up your following using bots, it's not going to work in the long run. eventually it'll be exposed ESPECIALLY with your engagement. You'll be further exposed if Instagram becomes another Vine or Myspace. If your following is legit, you should have a fairly decent size on other platforms as well. Maybe not as big, but more than the average.