"Nothing, or nothing you can see..."???

[Arba]

Recently I found that some guests do that  in my forum when I go to -who is online-.Just curious what is that what they do what I cant see as a forum administrator??
Hope nothing bad or malicious?? .I do try to scan their ip adreses but get some IANA-BLK adress  result

[WebMasterZ]

just means exactly that - its usually a mod thats been added they could be playing arcade or adding a pin to the member map.

Nothing to worry about

[alan s]

nothing or nothing you can see just usually means a admin/gmod/mod is viewing the admin section or deleting someones post or modifying someones post

[G6Cad]

Install the google and Spider mod, and you see what that "guest" is doing there