Having a gold item with Sighstone should activate a passive 5 gold per 10 seconds.

Now that games end much faster which I ok with, I feel supports kinda get the short end of the stick as gold items do not make up for much for short matches. So you left with most games only building 2 items + a sightstone. And the 1 of the 2 items is a gold item, and the other usually redemption or what ever else you decide to build like locket maybe.

As a support I am considering not even buying sightstone anymore due to how little gold we have to work with in short time. So I figured with an idea like sightstone creating more gold income mixed with a gold item would make supports especially in lower elo motivate them to buy one not feeling like that missing out on as much gold.

Just an idea, you can let me know how bad or good it is in the comment section if you wish.