The who's online does that? i hadn't checked, however if the view ip button is available to everyone (inclduing unregsitered) then bots that read code will be able to see the ip as it's shown in the Alt for the button, try it, if you view a post on your forum where you can see the ip button right click on the sheet and view source then use the Edit>Find and look for postings.php?do=getip& and directly below it you will see the Alt and the ip for that post