Building Suggestions
Make the floors, walls, roof and doors upgradable and in each upgrade the texture changes and the health of the structures increase. For example Wood -> Stone -> Metal.
Make the doors destructible.
Add hit noises to the structures. Because when i hit the floor or roof with an axe they don't make any noises.
Add an opening animation to the door.
Forum Suggestions
Add an off topic section.
Add a help section.
Add the ability to report users.
Add staff applications.