I uploaded an addon to AMO a few days ago - the fist time I’ve done this - and put a link on a forum. AMO reports 4 users and 9 weekly downloads.
How is that ‘4’ calculated? I understand that it’s based on update pings, but is that just 4 machines? I have three copies of Fx - 2 desktop and one mobile, all used every day this week. They are sync’d, including addons (though it didn’t sync-install this one - perhaps because it’s unreviewed). Am I three of these users?