Related to issue #366950: "Administer Users" permission should be separate from "Administer Account Settings".
The permission titles for "administer users" and "administer user settings" are way too similar. They also don't have descriptions and may be confusing when viewed at the Permissions admin page. Verbose descriptions should be added to document the differences and help users.
Possible description texts are already suggested in this comment in the original issue.
There is a similar issue to this one, which may be helpful as a reference:
#1365234: Add description to "access content overview" permission
Opening issue currently in postponed state, awaiting the original issue to be commited.
Also is suggested to tag issue with "needs text review" and "needs usability review" to attract UX wisemen when set to active.