I noticed that most of my online friends on PS3 are around level 5 or 6 (from acquiring trophies) when I see their profile. What is the max level you can achieve? What is the benefit for having high levels?
There is no benefit really, it's just to show how many games you've played and/or completed. I've seen people as high as 15 on mine (I'm at 12 now).
I'm level 16 (I have 35 platinums) but the guy with the greatest amount of trophies on Earth, Hakoom, is level 36 and has 170 platinums. Check out his PS3 Trophy Card page.
There's some explanation @ extremeps3.com