[as1mov]

It's kinda risky in my opinion. I just checked a few of the addresses (mostly the one's without any numbers at the end), some of them do actually belong to real people.

[doronlinder]

I was aiming for a feeling of dealing with real data (even though it's not). Changing the email domain names to fictitious ones will solve this, but I think would undermine the feeling of real-ness.

[henryfjordan]

What's the risk? Your email address isn't exactly a secret...

[as1mov]

Well it's not exactly a risk, but people might get miffed their email is part of some website without their permission.

Also, in a rather grim coincidence, one of the emails I googled belonged to a person who had died in a car crash few years ago.