Call yourself an Achievement/Trophy Hunter? Well PSN user Hakoom officially can.
Hakoom as reached the level cap for trophies, when he reached Level 50 he had 250 Platinum trophies and 13000 normal trophies. He now as 285 Platinum trophies and 15000 trophies and is recorded as the only official user to do this without any hacking tools. (Although a lot of people claim that he has used them).
You can see the video of him reaching level 50 below.