At this point, we're convinced that Konami is just trolling. Not content with – deep breath – cancelling Silent Hills, de-listing P.T. from the PlayStation Store, and removing the license from download lists – it's now stopping people from Share Playing it, too. To be fair, this could be an infrastructure issue on Sony's end, but we wouldn't put it past the Japanese publisher to put a block in place.
For those out of the loop, Share Play allows you to stream your games to other systems, essentially enabling someone to play a title that they may not own. For those not lucky enough to have downloaded Hideo Kojima's petrifying promotional escapade in time, then, it seemed like a good enough workaround to give people a chance to experience it. But no – it looks like you'll have to watch it on YouTube instead.
Well, until the publisher starts issuing copyright claims, we guess.