It got so bad that I'm actually taking my own notes on topics again and trying to build up a personal knowledge database. Maybe it's not such a bad thing...
I have to append site:reddit.com before most queries now. Health and medical queries are the worst. The top results literally have the same generic content.
Maybe a no-filler health info website could be viable if it spread by word of mouth and not via Google. After a while it should become well-ranked on Google anyway, like Wikipedia or StackOverflow. Getting it to that point is a chicken-and-egg problem though.