Go and click to the invitation bar and you can find an option written as " search friends " . Then it's easy to find that unknown user if you're pretty fond with his/her username and DP ( display picture ).
Hello there,
Individual wealth is not taken into account, so it's a poor indication of prosperity in general. They are doing this to measure quality.
Hope this helps.
~Jurgen
it was created much later than the others
Explanation:
bc I said so
