Here's a scenario - Contoso decides to migrate to a new Sharepoint location. We then have to go and review all our KBA's for links to the Asset Register, and then update them to the new link.
I would love to see a location in Hudu where we can set variables like a constant for things - like this asset register.
Then in the article we could link to the constant, and if we ever need to update the link, we can just do it in one place and have that reflected across all of our articles.