Whatever metric they use to track installs has to prevent abuse like this
I would be eagerly awaiting a follow-up response from unity from this, because as it stands right now, consensus among gamedev circles is that unity won’t prevent abuse at all, which is just awful for multiple groups of people.
someone paying for your game and then re-downloading it every hour would cost you $144 a month
someone paying for your game and then re-downloading it every 5 minutes would cost you $1728 a month
web games exist, and if the Unity Runtime Download metric is used there, well, that is going to be an expensive bill for anyone putting any sense of monetization in their web game