It has been a year and a half since we launched Data Explorer. In the past few months Tim Stone (on a community grant) and I have pushed a major round of changes. Thanks Tim!
Since we publicly launched data explorer, the most notable change contributed back from the community was support for query plans, big thanks to Justin for submitting the patch.
We also added quite a few bug fixes/features, mostly around merging users. Some features were added to defend data.se against an onslaught of public queries. A few features were added to support non Stack Exchange data dumps, most notably a system …