Back in 1998, I specifically started using Google because it somehow managed to avoid spammy search results, unlike its competitors. Today, unfortunately, I find that a lot of Google's search results are spammy, useless information that is there for clicks and advertising only.
They have obviously been in an arms race with spammers and scammers since then. In 1998 it was relatively easy to stay ahead, but to keep winning for 30 years?
That was Google's whole selling point and reason for existing: "other search engines suck. We invented this algorithm to make one that doesn't suck."