Hey guys, This is really wtf... I've been furthering my studies and temporarily put IM aside (that's why I've hardly come online here). My authority site has been getting me some stable income to fund my studies. Yes, there are review articles but it is also pumping relevant articles (600-1000 words) helping readers. Useful articles on tips, info, and so forth so that's value. I used to build PBN backlinks long ago, but I've stopped and went whitehat - only publishing articles to increase its authority. Just today I noticed my sales dropped drastically. I check my ranking and WTF? DEINDEXED! Any ideas how to go from here? I'm sort of panicking about it. ADDED INFO: About 100 review articles but 250+ articles on tips, .etc. The articles are all 600 words minimum - with images and videos. Pure informative without spam. The last PBN backlink I made was 6-8 months ago. No more backlink campaign after that. Also, no suspicious neg SEO. The authority URL used to be under some government's organization. I bought the expired name over and build up my site from there.