It's quite important that SERPs are scrapeable, because they keep advertising scams like ETA/ESTA sites: https://www.bbc.co.uk/news/technology-56886957
Same with land registry UK, it takes me several tries even though I know I should be looking for the .gov version. Last time I only realised I got the ad version because it asked me to pay for something that's free on the gov version.
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It's interesting to imagine how the world would be different, if internet advertising giants were partially liable for scams/malware that they facilitate.