Huh? I never did that. And psntrophyleaders also shows 150 plats
Just look at your profile again: http://psntrophyleaders.com/user/view/golfgt170#games
You have some hidden game(s). The trophy count in the upper section, which is calculated based on the games that aren't hidden, differs from the one on the left side of the page, which is just the PSN Total.
Our app goes through all the "public" games on your PSNTL profile and makes its own count, which is hopefully the same as the PSNTL, but not necessarily the same as PSN's.