Unfortunately, as long as DDG depends on third-party crawlers, the suggestions to improve search results (& "the algorithm") seem far-fetched & naive.
(DDG does have its own crawler, DuckDuckBot, but apparently it's only used for very specific functionality.) https://help.duckduckgo.com/duckduckgo-help-pages/results/so...
> For DuckDuckGo, it may be tricky to resolve the issue permanently as long as it relies on Bing. https://torrentfreak.com/duckduckgo-restores-pirate-sites-an...
> According to various online forums, the best way to ensure your site gets indexed by DuckDuckGo is to submit it to Bing and Yandex. https://www.jessesquires.com/blog/2022/03/25/my-website-disa...