Back in the day, SEO focused on pleasing algorithms. The goal was to create sites that appealed to them. Algorithms were especially happy with lots of keywords. They also liked many links with relevant anchor text.
The natural result was sites that appealed to algorithms, but weren’t quite up to snuff for human beings. Over the years, however, Google has improved its ability to determine what human beings like in their SERPs. Consequently, many previously successful SEO methods have become obsolete.



