Shoutbox

[Azunite]

Sometimes I see on the shoutbox things like " PrinceOfMadness has reached 2000. post!"
These are posted by nobody, it is a system.
But these two? These two were also posted by nobody, but what are these?

*Origami is turned on by the sudden cannibalism.*
*Sage is some kind of fucking cannibal swine*

[The Madness.]

That's posted when the user goes '/me is turned on by the sudden cannibalism.'

/me is the command to do that.

[Origami]

Sometimes I see on the shoutbox things like " PrinceOfMadness has reached 2000. post!"
These are posted by nobody, it is a system.
But these two? These two were also posted by nobody, but what are these?

*Origami is turned on by the sudden cannibalism.*
*Sage is some kind of fucking cannibal swine*

The system you're referring to is the post count notification which notifies people every 500 posts or so, but as said above, your posted example is the /me command.

[Jess]

the /me command

the posts thing is automatic

[UnknownError]

Just type /me at the start. For example:
/me has just ate a cake
and it will come up as:
PrinceOfMadness has just ate a cake

[Powerline]

When someone reaches a certain post milestone it automatically posts it. But to make your own like others have said type in the /me command then whatever you want to say.

[enjoying_my_insanity]

ok time for me to sound stupid....where is the shoutbox?

[Powerline]

ok time for me to sound stupid....where is the shoutbox?

scroll down to the bottom of the homepage

[enjoying_my_insanity]

holy crap! how did i miss that? XD thanks

[Powerline]

holy crap! how did i miss that? XD thanks

lol you're welcome

[Scarface]

OP has his answer.