I have a different opinion✢: I think it's a clever service, maybe not one of the most useful, but it's a clear vision and it goes straight to the point.

There are a lot of cases where finding an email is an easy task, as easy as flasname@company.com, but I expect this service to shine when it's hard to guess an email address, so let's see what it could do.

✢Disclaimer: I know yawnt, the guy who wrote this service.