Have a look at my mod. It stops the supermods to use the ip search function at the Mod CP and they can''t see ip''s in posts.
https://vborg.vbsupport.ru/showthread.php?t=235261
Now I saw that this was for vb 3. Sorry about that as I thought I was posting in vb 4 section. Try to remove the version compatibility at the mod package and see if that would work in vb 3.