It is a cheaper way to boost. Boosts are available battle.net wide. I picked up a number of boosts at the recent holiday sale, so this worked as recently as late Dec 2018.

The process is fairly simple
  1. Create Starter Account
  2. Buy BFA and select the starter account
  3. Do NOT add game time or sub
  4. Delete Starter Account with an automated ticket ( https://battle.net/support/help/prod...1/878/solution )


If for whatever reason you accidentally add game time or sub, GMs can remove the accounts with a regular ticket, but you likely will have more hassle/time involved.