FYI: This affects to old games. New games like Resident Evil 6 uses Steamworks or other features that doesn't depend on Games For Windows Live.
Games like Resident Evil 5 and Resident Evil: Operation Raccoon City uses the Games For Windows Live service to activate and register games Windows Live users account, as well as to save games.
The GFWL service will shut down on July 2014. Therefore I strongly request to Capcom to update his games that are in steam (and outside Steam, of course) and uses this service to apply an update patch to NOT use the GFWL service. If it doesn't, the game life of many old games of the company will come to an end when the service shuts down, leaving them unplayable since these depend of the GFWL, and therefore those getting out of the catalog of Steam.
They closed the Windows Live Messenger server (aka MSN messenger), so I don't think that this could be considered a hoax.
Capcom, please react before it's too late.