The article already notes that
privacy-focused users who don’t want “AI” in their search are more likely to use DuckDuckGo
But the opposite is also true. Maybe it’s not 90% to 10% elsewhere, but I’d expect the same general imbalance because some people who would answer yes to ai in a survey on a search web site don’t go to search web sites in the first place. They go to ChatGPT or whatever.