When I search for programming topics (in my case, Swift related) I see lots of links from sites like xspdf.com and others that clearly just scraped stack overfl

When I search for programming topics (in my case, Swift related) I see lots of links from sites like xspdf.com and others that clearly just scraped stack overflow and other legit sites, crammed the content in a useless format that makes Google think it is original and adds tons of ads. Since it looks legit in Google search results you click on it and then realize how useless the content is. Often the sites appear earlier that the original content did. So I don't click on them now that I know this. Google of course seems not to care or is incapable of noticing.