I think they did at the beginning, there's been a lot of algorithm changes before but once they realized they were losing, they just gave up. The incentives ar

I think they did at the beginning, there's been a lot of algorithm changes before but once they realized they were losing, they just gave up. The incentives are just not aligned anyways, Google Search gets its money from the ad links on the top, they don't really lose anything if the links below are half terrible...