I have not activated the "Who's Online" plugin on my test site. However, the "light" under the profile gravatars on the left (I mean, next to the post--the poster's info box) shows whether a user is off or online still, and the first column from the spFoot.php file is still showing all of the following info:
Most Users Ever Online: 2
Currently Online: Robin
Currently Browsing this Page: Robin
It seems like if I'm not using the plugin, that info shouldn't be showing, should it? At least not the "Currently Online" and "Currently Browsing this Page" lines. I realize that I can delete them by editing the php file, but I thought I should ask.