Why is User Class Key editable?

General
1

Don’t know if I ever noticed before, but I just saw the the User “Class Key” is an editable field in the user profile. Why is it editable? Why would someone want this to be something other than “modUser”?

2

Maybe you can take a look at this page:

https://docs.modx.com/current/en/extending-modx/custom-users

Especially the paragraphs Overview, Purpose and available extras.

3

Thanks, just what I was looking for.