When I discovered this forum I had already some websites but I didn't know about the power of backlinks.
So I had that idea to buy some PBN links on Fiverr to improve the rank of one of my sites.
I bought only good PA / DA backlinks with less than 2 spamscore on Moz.
These backlinks were not bad, with unique images and unique contents surrounding the backlink.
But here are the stats of my last on month on google console :