One opportunistic gamer managed to find a loophole in the PS Plus trial for non-subscribers on PlayStation 4, that allowed him to extend his membership to the service until 2035. For free.
The tip was sent to VG247. After the unnamed user clicked on a new Outlast banner he was asked to add his credit card information and was asked if he wanted to extend his membership, with the option to do so in 14-day intervals. Doing this repeatedly he extended his membership to the year 2033.
The following day the tipster checked back in, found that the loophole remained intact and added a couple of extra years (just for good luck).
"Once you accept the deal, you are allowed to keep extending the 14 free days for free once prompted after confirmation of the free purchase. All you have to do is keep pressing X and you keep getting 14 free days added to your free subscription. The hundreds of email confirmations from Sony all say $0.00,″ he told VG247.
It appears that Sony has since disabled the loophole, as you would expect them to. In more PS Plus related news, it was confirmed to Gamereactor yesterday that Triple-A games are heading to PS4 via the subscription service.