I'm interested in starting a Private blog network and I have a question for those of you who built your own PBN 1) when you create your pbn, is it made up of domains that are related to your niche with relevant backlinks? or do you take any high pr expired domain and add niche relevant content despite the backlink profile being unrelated. example: if your niche is real estate do you only buy expired domains about real estate with backlinks from other real estate sites? what if you see a really great domain but it was a recipe website with backlinks about food, would you just remake the site with real estate content? is that less effecitve? thanks!