When you access DuckDuckGo (or any Web site), your Web browser automatically sends information about your computer, e.g. your User agent and IP address.

Because this information could be used to link you to your searches, we do not log (store) it at all. This is a very unusual practice, but we feel it is an important step to protect your privacy.

If they don't store IP addresses then (I believe) they can't use wifi-router-based methods to find your location. Your browser also doesn't get a popup asking to give ddg your location.

So yeah I stand by my link and my interpretation of it.