That's a troll video. It doesn't work. You'll notice in the video that he only pulls the first one out of the post master after that he doesn't pull another one out. What he does is pulls the first one out, puts it in the vault. What we don't see him do is go back into the vault take it back out into his inventory then delete his character. Once he does that, it's like he never got one since he didn't open it, so then he just does the same thing over again and again but thus time he doesn't take it out of the postmaster each time so it looks like he's getting them over and over, which he isnt. This has already been debunked a few times by other youtubers, also I have tried it myself even before this guy made his fake video. This is why bungie hasn't had any reason to make a patch to fix it. You know it would have been the first thing they patched.