Copying anothers account

Just wanted to see if this was a worthwhile strategy.

Let’s say you have a niche that deals with fans of te TV show Game of Thrones. You have found 5 users that have a combined total of 4.1M followers.

Would it make sense to start a new account, and repost all the posts from these 4 accounts. At the same time, follow all their followers. In theory this should enable you to create an account with a LOT of content and possible followers.

I won’t comment on whether it’s a good idea or not, but it’s safe to say that 80% of people are doing just that.