That's why you shouldn't care about trophies or whatever... the satisfaction from playing, or potentially completing a game should come from you know, playing or potentially completing the game, not the system telling you you got a platinum trophy and giving you a pat in the back.
Seriously never understood the appeal of universal achievements. But, to each their own I guess.
This makes no sense because I also get great satisfaction from getting 100% in the game not including the trophies and now I'm forever stuck on 95%.
The platinums are basically just keeping a record of what games you have completed to 100% at least in the case of gta.