Zillow Contact Name Oddities

[Brian Kraft]

Odd question maybe, but for those that market your rentals on Zillow -- have you encountered this oddity?

For an incredibly high number of people that contact me through Zillow to view a rental property I'm advertising, their contact name starts one way, then in a subsequent correspondence, their name changes. For example, Michael contacts me, I respond, then the conversation continues with Keith. This kind of thing keeps happening and I'm really confused as to why. I've asked a couple of these folks, but they haven't helped me understand what's happening. 

Should I be concerned this is a sign of some kind of scam? I'm also wondering if it's something that Zillow is doing. Especially now that I'm paying for using their services, are they (clumsily) creating fake contacts to up their perceived value? Or hopefully it's a more mundane thing. I don't know. Anyone?