Yes, +Sheryl Loch
it does see the About page as part of your profile. I think you can only see someone's About when you're in their profile.
Also, it looks to me like all those many results you got for Las Vegas are only people who mention Las Vegas in their profile, and not people who posted it in their posts.. I clicked on the bottom link for a few of the search results pages right back to page 100 (the last page in that search result), and they're all Profiles and they all mention Las Vegas in their Profiles. That's prolly because it's a place where a lot of people live & have lived. London's similar.
I started out this search thread when I was hoping to find people who mentioned small places that I've lived in, and I did find them for most of those that I tried.
But it doesn't work if your place is a common name, like Hackney.