Yes, but referrers will be passed, I didn't wanted to blank them out because many aff managers want to see from where traffic is coming. If you use traffic from shady and not permitted sources you need to fake referrers.
Put script on blackhat domain, receive traffic and send cleaned traffic to your whitehat sites, you will see all clear when you open the script.
- If you have cpa / product offers on your whitehat sites than is all good, your site will be referrer.
- If you are sending traffic directly to cpa offers and your traffic source is not allowed, you need to fake referrers.
Also its on you what to allow or block, I don't have list of ip's / hosts that you need to block, its up to you how you will track them and add them to the script.