I was going to make this as a tongue-in-cheek troll post, but then I figured there is a serious side to it.
It's with regards to one of my previous Idea posts:
http://forums.autodesk.com/t5/vault-ideastation/eco-properties-don-t-follow-the-rules/idi-p/5318891
Essentially, there's an option to enforce a value for ECO properties. But as confirmed by Autodesk, it isn't supported therefore it doesn't actually do anything even though the option is there, leading you to believe it should work:
http://forums.autodesk.com/t5/vault-general-discussion/eco-properties-can-t-enforce/m-p/5321827#M547...
My Idea is... if something doesn't work, isn't supported, can't function for whatever technical reason, remove the option from the product or grey it out.
I honestly don't mind if something isn't supported. I do mind wasting an hour or two scratching my head blowing time trying to make it work when all along the code behind the option just isn't there, it's disabled, it's wasted my time and annoyed me to boot.
This isn't restricted specifically to ECO properties, this applies to all other red herring empty duff options in Vault. The Item watermark 'transparent' colour option is one of a few I could back this up with!