Nope, I give my time, opinions and advice completely free in the interests of helping private individuals. I enjoy doing this and get a lot out of it.
However, I wouldn't give the same level of time and advice to a company looking to use that information for profit making activities for free, why should we?
You must remember this is a discussion forum. It isn't a forum where you can demand information. You can ask questions - and these questions lead to discussions, which more often than not will contain the answer you are looking for but if they don't they end up providing a discussion for the community to participate in anyway. In the context of this 'Why does it need to be gold' is hardly an outrageous and instrusive question to ask of somebody who pops in to ask where he can hire a supercar in a colour it is almost certain that literally no hire car company has.