Board Thread:Game Discussion/@comment-33870577-20180826125249/@comment-28412524-20180925083558

I was working with systems to send Push Notifications to targeted devices at specific events in big scale - 100M+ per hour. I remember that once we had a very unlucky user who was (by some development mistake) targeted much more than it should be - much more means like he/she received one day around 1M pushes. I think that this person is still rejecting those notifications (it was 2 years ago)

So it is possible that some Push Notifications might be incorrectly targeted because of whatever reason (bugs, mistakes or just pure coincidence).