Oh, !g in DDG just sends you to the Google search results for that query.

They have more of those too, they’re pretty neat. For example: Typing “United States Capitol !w” will bring you directly to the Wikipedia results page for that search.

And !wde will take you to German wikipedia, !wes to the Spanish, etc.

Also works for amazon: !a for amazon.com, !ade for German amazon.de, etc.

Because it's not a single variable equation. There are more variables besides search quality. And I think you agree. If G clubbed a baby seal every time you used it, but produced better results, would you still use G?

I believe its the flag to use google's search engine.