[keneda7]

>This isn't correct. The API restrictions are per client id, so your app must be limited to you specifically.

It is exactly correct. I said you build an app for ONLY YOU TO USE. You can still use multiple reddit accounts that you control but no one else is using your API key. Or put another way, you register an API key and then grant that API key access to all your reddit accounts (using OAuth most likely). No other persons reddit account would be using your API Key.

Also that is not the whole purpose of OAuth. You have been able to attach multiple accounts to a single clientId for decades. There are still plenty of sites using SAML that have multiple user accounts tied to one clientId. In fact you can very simply do this today without OAuth. Make a table called clients that owns a table called users. Any user that logs in will have a record in the users table you look up using their userId and then look at the clientid or apikey attached to the parent client record. Then use the clientId/apikey to access any resources you need.

OAuth is delegate authorization framework. Its purpose was to give users the ability to give a system limited access to their data without giving that system their password. It allows you to seperate Authentication and Authorization. Here is a good link to learn about OAuth: https://developer.okta.com/blog/2017/06/21/what-the-heck-is-...