Madinah Expels Bad People (Hadith No. 1590)

Bismillah.
Volume 3, Book 30, Number 95:
Narrated Abu Huraira (radiallaahu `anhu):
Allah's Apostle (sallallaahu `alayhi wasallam) said, "I was ordered to migrate to a town which will swallow (conquer) other towns and is called Yathrib and that is Medina, and it turns out (bad) persons as a furnace removes the impurities of iron.
So bad people can't live in Madinah.. and whoever is living or has lived there has good in them.. Wow, lucky (of good qismat/sa`eed) people! Makes me want to stay there forever. May Allah give me the sa`aadah. <3
I wonder if the residents of Madinah allowed to brag about it.. :P