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> 4. Unclear definition of install was used. What they eventually settled on: once per unique end user per distribution platform (e.g. app store), was pretty much what Unity was going for anyway, but the initial announcement royally messed up here.

That was not a miscommunication though: it was brought up directly to Unity and the initial response was that it would be per install, per device.

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Yes and no. In practice evidence suggests they were planning to heavily rely on app store install counts for games not using unity services, and thus for which they had no better data. This is part of the reason why they were being so cagey about how they would estimate the install counts, because they would be heavily using relatively crude approaches like that. (and also hadn't fully worked out the details).

For IOS, for example, reinstalls don't increase that counter. I'm not sure how it works with the Play Store.

They almost certainly said that reinstalls would could because they might count for some platforms.

Plus, as a user of the endproduct and not the engine, I am not keen of my installs getting tracked.

It has become quite normal to create device identifiers, some crazy people do it in the name of security even, but I resist this development where I can.

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