[cbr]

For my privacy to be protected in this way it doesn't matter what search engine I use, it matters what search engine the people who are trying to look me up use. If I want a fact about me to not come up when people search for my name I would need to remove it from any search engine others might look in. This is a lower barrier than usage, but you're right that at least for now people probably won't bother submitting these to DDG.

Unless someone makes a single form for submitting a removal request to all/most search engines? Though I guess then the search engines could pool together and do some kind of centralized processing of these requests?