I agree to the rules.

I think the most interesting thing is for people to have the potential to waste less. An example is if you have a plastic part break on your vacuum. Now-a-days it is cheap enough to just buy a new one since a replacement part from the manufacturer is so expensive it is worth it to buy a new vacuum. If you can print that part for a dollar, you keep the vacuum out of the landfill, avoid the impact of getting a new part to you from the manufacturer.