Linking a url in in-game chat would be a pain for those trying to access it if they don't have the save chatlog feature enabled. This could prove problematic unless you actually insert the rule update straight into console chat - which is fine if it's relatively simple and short.
I suggested this back when the LH Guard ID was changed. I don't re-read my ID every time I log on. How would I know that I was no longer allowed a ship unless someone told me? Announcing via forums is better than what happens sometimes, but giving a ping ingame to all people affected would be even better. And not even that hard! Just PM everyone, there's already a mailbox coded...