... if they meant per user, they'd say per user. They don't, but explicitly say that it is per client id (=app).

> since he says that "over 90% of apps" make rates at requests within the free limit.

>90% of apps are people that played around with the API a bit for fun or run a small hobby-bot or something. Of course those stay below the limit (and for many of those, 100 qpm is indeed quite generous). It's also entirely irrelevant to the small number of apps that non-dev end users use.