Hidden users and BOTs

when was there hidden users and a bot on the fourm? I dont recall a bot or hidden users.

Hidden users are people who in part can avoid being detected by normal users when they are doing something, like every time people look at the "Who's Online" to see what each member is currently doing, and which is privacy being watched, or that you don't want to be seen for personal reasons.

Bot always come to a forum like this, the ones that you can make for free, and web hosting for free, someone has to pay it, so a bot is how they get "searches" into google, yahoo, bing, etc. And this pays money into ads into a forum, which they place into.