Why Over-Optimized Exact-Match Anchors Can Kill Your Search Traffic

https://smart-wiki.win/index.php/What_I_Learned_Hiring_Link-Building_Vendors_%E2%80%94_The_Coffee-Table_Edition

I learned the hard way. A few years ago we chased quick wins: aggressive guest posting, keyword-rich author bios, and a string of directory links that all used the same phrase as anchor text