When developing apps that heavily rely on user interactions (and social media type functions) it is very important to verify that the app runs as intended for all users involved. Actions that by-design require the participation of many users are also a hassle to debug because their setup involves reloading and navigating many pages.
I think it would be extremely useful to have a debug functionality that allows for the quick switching of the current user between users in the database. (Very important that the URL and all the data tied to it remains unchanged) This would make debugging so much more pleasant!
Thank you for your consideration.