tl;dr for that is basically:
Kite has been collecting "anonymous" data from sublime users with the SideBarEnhancements plugin installed. This has been happening for atleast a year and the data collected included activeNonBundledPackageNames which is basically a list of packages installed via Package Control.
It seems they were intentionally unclear about who the data was sent to and did not think to remove it from the plugin after the Atom Minimap incedent because:
> the truth is we didn't remember [2]
[1] https://www.reddit.com/r/programming/comments/6qwtfz/kite_in...
[2] https://forum.sublimetext.com/t/rfc-default-package-control-...