hi if u upgrade you XOOPS 2.0.5.2 to XOOPS 2.0.6 try to delete a normal user i think you cant

look at that

Admin user cannot be deleted. (User: 23)

note : this user 23 not admin its a normal user

so i think somthing is missed in
modules/system/admin/users/main.php

plz cheek
case "delete_many_ok": its not work correctly

btw

you can delete normal user if you click at delete in xoopsmembers area but in the admin in find users you cant delete anyone

is i am true
just try it and tell me
thanks

Multiple user delete works fine on my system.....