Minecraft Server Griefgames ask?

Hi, if one of you knows the server on Minecraft "GrieferGames", can someone tell me how you can make a lot of money? I never get anything bought.

Try to create valuable plots, you can sell them later. Can you team up with people and work on it together (house / farm)

Small things like wood or something like that are hardly sold anymore, try to get more expensive things and then sell them

Mining quartz ore with silktoutch and then with drop 4