*Bing, DuckDuckGo's own indexing is fairly limited compared to other search providers like Brave. Most of DDG's index comes from Bing.
Personally I tried to switch many times and always made my way back, and I'm not even really in the Google ecosystem unlike others.
DuckDuckGo allows for supplement of Google Search, as does Brave, and other search engines. Google freaked out after the ChatGPT release (rightly so) and padded their hand a bit.
Impact would probably be Ads via Google Search Engine. Which, great, because Google Ads-generated results remain a huge vulnerability in terms of active phishing attacks. Maybe it's gotten better in the last month, however I don't really use Google Search anymore, to avoid phishing attacks.
And, this is one reason why I like Brave, because I can control what content cannot appear in my search results, to better mitigate phishing attacks.
Anyone who has thought google was doing anything good after they bought doubleclick is living in fantasy land. They pretty much immediately started playing advertising extortion games and they optimize for more viewed google ads with things like AMP and making ads harder to notice. Google stopped caring about "information for all" the second after they made their original research paper and realized they had a significant competitive advantage to make some money with.
If you want your mother to bake you cookies, tell her she only needs to type "duck.com," not "duckduckgo.com."
At least until today. Now I get: Application error: a client-side exception has occurred (see the browser console for more information).
HN has about 1/1000th of that. They do not click every link or make decisions in unison, so the number of people who would interested in such a boycott is probably 1/100th of that. Maybe less.
So, no.