The TL;DR as I would put it: DDG stores your IP address for A/B testing. This results in personal/private information (your IP) being logged and stored by DDG.

The TL;DR as I would put it: DDG stores your IP address for A/B testing. This results in personal/private information (your IP) being logged and stored by DDG. However, I am not so sure about the article's conclusion. I do agree that the phrasing is a bit hazy, which might or might not be intentional. At the same time, the conclusion ("Don't use DDG") seems very broad. I don't see a good point, that the IPs used in for A/B testing could actually be used for tracing back actual IP addresses. I am also missing any point about how the proposed solution (use "arkenfox") solves that problem.