Minecraft Help on a skyblock

Hey, so maybe say a year ago I played with a player named "Tomthebomb12345" and we made a skyblock and played a lot. He then left for a while and never came back. I want to take down something on my skyblock, but his signs are there. Those signs to buy and sell items from players and to players. It would be great for an admin to help me out and destroy his signs. Thanks!

 

hmmm... I think a admin would need approve of taking his chest/signs down since no one actually know if he is just taking a break or leaving forever or he might just quit sky block for a while and play on other mini game and one day he might be board so he might come back and if u need to remove it that badly. then just make another layer.

 

Well if he comes back, it wouldn't be too hard to put the signs back.