You can't sort by join date. Sort by message count. Sort by other data. So if you have 60,000 users like we do, I look at this User page and feel like there is nothing I can do with it. I only see the first 30 or so usernames, which is apparently being sorted by alphabetic, and there are another *five thousand* pages of usernames after that.
Likewise on vBulletin (and I guess XenForo) there are no "mass operation" options. There are individual "X" to manually, one by one, delete a user, or take certain actions. Long lists like these need checkboxes and "select alls" and "Show 25, 100, 500, 1000, 5000" and other long list features that are common. Otherwise this list truly is of no use.
I'd like to put in my request to make long lists like this in the admin, usable and helpful. Sortable. Mass-quantity actions, checkboxes, different views, etc. As an Admin we need this, especially for user accounts.
My current issue: We just migrated and enabled XenForo and I have nearly 800 spam accounts registered already. I wanted to view the user list and sort by "Date Registered", then simply "Check all" for each entire page, until I had deleted the last 800 registrants.