Re: can User Lists and so forth in the QMC be output?
The easiest way would be to query the Repository Database itself. For Qlik Sense Server, pgAdmin is installed with the PostgreSQL database in Program Files > Qlik > Sense > Repository > Postgresql > bin > 9.3 > pgadmin3 (if I remember correctly). The QSR runs on 4432 rather than the standard PostgreSQL port. Enter the superuser password and then go to QSR > Users for the user table.
I would highly recommend making no changes unless you're 100% confident in what you're doing and in general be sure to make regular backups of the Repository Database itself (the backup procedure is listed on help.qlik.com).