Would it be possible to show a total number of downloads on the
website? If yes, I can open a bug for that.
Basically, number of users of a version ~=
Number of download of packages
+ Number of people fetching the epp "products" artifact with p2, I think querying /stats/technology/epp/packages/2019-06/org.eclipse.epp.package.common.feature can give that.
The installer cannot be added here as it's a "gateway" to EPP products via p2, so the user of installer would already be counted with committer stats
However, there is a glitch somewhere in this approach: the number of p2 installs gives a total of 616502 installations while the installer was downloaded 2+ million times and that doesn't count "on-site" upgrades.
So this process which should theorically work has to be debugged before we can rely on it.