Ohh noo....you don't like the symmetrics of the Profilepage? It hasn't shrunk, but the Comments/Greetings have been set to the same size. Before, someone would send a HUGE picture and it would str-e-t-c-h the page so you had to scroll over to see it all.
Now, all the pictures are the same size... The page is really about the member, not about the large graphics someone sent you. Look again, and I think you'll see that your screensize hasn't changed, it's just more balanced.
This is still temporary, as the Tech's are designing a new Homepage and Profilepage to allow for Achievements and Groups!
