More pedantic than

> What does "our data" mean in this context?

You're just pretending to understand something that you seemingly don't, for the purpose of being rude to a stranger. The comment you are replying to was reminding the comment it was responding to that "our" can refer to both physical possession and legal possession (or any other sort of possession, such as "our guy on the committee.")

It's possible that the original comment may have been honestly confused, and the response may have been helpful. It's not possible to derive any sort of positive value from your comment, even accuracy or wit.