i think it's not spamming, because I'm commenting useful reviews and tips, and im doing it slowly, 2 blog comments per day,Spamming isn't a whitehat SEO. People are removing your posts on their website because you are obviously trying to get backlinks.
I believe, you didn't do a guest post on parasite sites right? Because, there you can create accounts and submit articles. But they don't guarantee for the articles.
i just started a niche site 1 week ago, i do whitehat SEO using scrapebox ,guest posting and blog commenting, and recently i checked my backlinks, and they are disappearing one by one, can anyone tell me what am i doing wrong?