Not in my experience. I have yet to get a refund from using this method(knock on wood

).
Also, I still make sales off of videos that I threw up months ago and totally forgot about.
This is a good method for quick cash, but you need to step up your game and be really aggressive if you want to make some good money with it. Accounts will get banned and locked, but if that's not happening then you aren't hitting this hard enough.
The ebook is a great walkthrough on how to setup a campaign like this. But if you want to make a nice amount of money with this, you definitely need to modify it.