Sergei,
But asking people to "please enable the feedback plugin" just doesn't work. It seems that most of our users don't care about it at all - I mean, they don't care whether it's enabled or not, and don't care to do anything. That is, if the plugin is disabled - it'll stay disabled, that's what is happening on Linux. If it's enabled - it'll stay enabled, that's what is happening on Windows (MariaDB Windows installer has a special dialog about it with a checkbox that's enabled by default, if I'm not mistaken).
Hmm, I would seriously wonder whether installations that use the default configuration and don't change/manage it will be the best source of data about customized configuration. (Or anything, really.) Is it really that useful to get a bunch of stats about packages that were installed perhaps only to meet some prerequisite for another package? Regards, Jeremy