It could also easily be used for phishing or IP logging purposes. Poor attempt though, almost everyone is now aware of unicode in domain names, and anyone techie enough would be able to spot it.
That said, I think it’s mostly ineffective because later versions of chrome are pretty good about identifying these doppelgänger domains and warning people away from them.
This could very be a risk. I was using Chrome when I found this out, I wasn't given any such warning.
It'd be good with chrome can offer some discouragement to these.