I was playing with my profile, and I noticed that what I have put in, and thought would be on more than one section appears all as one paragraph. I first tried just having \n\n after each thing I wrote (ie: pressing the "enter" key twice). Then I tried putting html tags into the description of me. Neither one made it display differently...

Not really that important of a feature to add, allowing users' bios to go into more than one paragraph, though it is a nice detail to have on a site.