That's why I have Firefox bookmarks where I type `s <query>` into the address bar which enters `site:stackoverflow.com <query>` into my search engine. Likewise for `r <query>` => `site:reddit.com <query>`.

This annihilates the SEO spam and is useful for most of my searches. It's glorious finding recipe ingredients without wading through a blogger's life story or a search result page filled exclusively with ads above the fold.