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

You may be right, the reddit post has been edited multiple times. I assumed when it referenced OAuth that it was per end user, but it does seem that "client_id" is global to the application. I wish I could find any place else that lays out the details on the limit besides just this one reddit post...

Currently, it says the limit is "100 queries per minute per OAuth client id if you are using OAuth authentication"

And it's pretty shitty if he's including every single toy project within the "90% of apps".