I was bored the other day, so I decided to make a spam server. The number of bricks increased quickly until we got to 100,000 bricks.
I had to turn draw distance down as much as possible to save without lagging out and crashing the server.
Everyone else on the server lagged out :(
This was made on the map
Brick Box.
Download Spam.bls: http://www.mediafire.com/download.php?miwntmwjnj3This is the most recent save from the spam server.
Special thanks to JackSparrow and Tomaxi for spamming a lot.
100,007 bricks.
Pictures:

Download Spam DM.bls: http://www.mediafire.com/download.php?d2imm4jmymiA special version of the save that works as a DM, you may want to delete the crap on the roof.
Playertype: Quake Player, Weapons: Rocket Launcher, Gun/Assault Rifle.
23,552 bricks.
Pictures:
Here is a Youtube video that shows the spam: http://www.youtube.com/watch?v=hSzoDrD8ScUI might try and get the number of bricks to 128,000