What exactly does this mean?

[Kiki]

vBulletin Message
The server is too busy at the moment. Please try again later.


I understand that there are a lot of people online, but what exactly is going on, that it makes you wait?

 

[Cricket2]

http://198.65.131.237/showthread.php?s=&threadid=151494

We all have to be patient until things get straightned out.