I don’t know if you deal with as many websites as I do, but I’ve been dealing with other peoples DNN sites since I first began dabbling with it over a decade ago. (Boy, does that make me feel old!) Restoring the website from someone else’s environment to test, troubleshoot, and fix an issue isn’t a major issue as long as you have some experience with IIS, SQL Server, and Windows. However, the testing you need to do often requires access to multiple accounts. This is the problem. Duplicating those accounts is either non-trivial, or time consuming. So why not just reset all of their passwords?