[Stephen]

The problem now is that people who design their houses have the ability to design in the same infrastructure server developers use. As a result it's very easy to include dangerous code (malicious, poorly written).

Because of that admins have to check the content before it is uploaded. If they created a in-game system to design your house and submit it for approval (in a predefined environment rather than the more open developing environment) it would be a lot more agile for the player.

Ultimately I would rather concentrate on the player than the administrators - make this system once and the most you'll have to do is improve it a little bit down the road. Otherwise you can forgot about it and let it do its job.