I think many creators manage large communities, some of which are so big that it would be useful to clean up inactive users directly from the ACP. I mean users who haven’t logged into their accounts for X amount of time would be removed.

There is no option like that. You'd need a custom application for it.

https://www.ic-essentials.com/files/file/54-inactive-members-cleanup/

5 hours ago, PanSevence said:

I think many creators manage large communities, some of which are so big that it would be useful to clean up inactive users directly from the ACP. I mean users who haven’t logged into their accounts for X amount of time would be removed.

can be done via the acp in a few minutes

using the member search in the acp

set the limits as needed, 'last activity ' being the important one

on the results page

check results showing are indeed the members you wish to delete

see the menu that's says 

Viewing Search Results. View Full List? — Prune Members Found — Move Members Found

use the 'prune members' link

the members will be deleted via a background task

 

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Suggest backup database before doing so as there is no return after 'prune'

Also a safer option would be to use/make a temp members group and 'move' the members into that rather than 'prune/delete' at first just in case of error or change of mind - you can then move them back

Edited January 11Jan 11 by sound