Is It Worth Investing in SEO After Search Visibility Loss Following an Update?

https://www.scribd.com/document/1032006019/Why-Parasite-SEO-Results-Vary-So-Much-Across-Different-Niches-154155

Search visibility drops after a Google update and suddenly everyone wants to debate SEO like it’s astrology. One week you’re shipping content, fixing technical junk, and watching rankings climb