id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
18728	All Roles need number_format_i18n in WP_Users_List_Table	wonderboymusic		"added 75,000 users to a new role, there as no number formatting 

This fixes it:

{{{
$name = sprintf( __('%1$s <span class=""count"">(%2$s)</span>'), $name, number_format_i18n( $avail_roles[$this_role] ) )
}}}"	defect (bug)	closed	normal		General		normal	duplicate	has-patch