So i ranked my local casino review site and reached 2nd page for foreign local term. Now what I need to figure out, whether the PBN sites that I used to rank this gambling site can be used to rank other sites besides casino niche ? I heard opinions and rumours that such PBN site quality and PageRank is compromised and if I place link to other sites, it will not rank. However to test this, I dont want to take chances and destroy something. What is your experience ?