You'd have to be really thoughtless to use your work or official government email account on a dating site, let alone one with a shady premise such as this.
They do, I read somewhere that out of 35 million addresses in the system, only 24 million are verified. Still, I imagine that there would be false positives in the verified emails list (for instance someone clicked on it by accident or without reading it as they were signing up for something else, etc).
