I fuckin hate griefers, and im probably not the only one. There should be an ability to "lock" blocks, making them indestructible. So then i build my giant chairs without them getting griefed

The search button is your friend.
Idea has been already debated several times - what happens if a 'griefer' locks blocks around your CP, preventing you from entering? Bad times.
Also, it's meant to be sandbox - build and destroy. The game just needs a remote admin program and better/more visible ways to kick people.

hey boss !

i was just playing with you :) my player was - paul*

heres a link of some of the pics i toke. the super chair should be down the end of the list

https://picasaweb.google.com/paulfitzgerald34/AceOfSpades?authkey=Gv1sRgCO6JzK_e--SvWQ&feat=directlink

YAY!

while destructable blocks would be nice in games like bridge wars, TGM pointed out flaws. mabey if level creators were given a few blocks (like 30-100 or something) and thats it it could work, but if everyone was given unbreakable blocks...you loose a portion of the game.