The problem with your idea is that you can also download an app called Burner or Sideline. Both of which give you access to additional phone numbers linked to your main phone number. You could even do this with Google Voice. Of course, there's a price to pay to have an unlimited number of phone numbers, but the investment would pay itself off if it means getting Steem payouts.
RE: Just found a team of bots upvoting random posts.