That is how it worked already, apps made requests through the users OAuth creds and rate limits were specified by unique OAuth cred and App combo. The new syste

That is how it worked already, apps made requests through the users OAuth creds and rate limits were specified by unique OAuth cred and App combo. The new system is just each app having global rate limits, after which they have to pay. Getting an API key requires submitting a written application to reddit and seemingly precludes "I want to use a third party app".