As explained, the author is not really using a search engine as most do. He/she really is just using DDG as a bookmark for searching a specific site. This works

As explained, the author is not really using a search engine as most do. He/she really is just using DDG as a bookmark for searching a specific site. This works, but how would you then discover that a better information source is available? When would you stop asking Jeeves or HotBot and switch to Stack Exchange?