Earlier quoted context omitted.
> Really? That's a "launch" these days? At least scrounge up a few hundred bucks and throw up some Facebook ads. Reddit and Hacker News have some of the most cynical and thrifty readers out there. Networking and getting the word out is half the battle. With such little effort put into the launch, OP could have been selling a dollar for fifty cents and no one would've cared. Eh, I tried exactly this for a "thought bub…
> There's absolutely zero chance that they all just happened to be female, nicely formatted [firstname].[lastname]@gmail.com addresses. That is my email address: [firstname].[lastname]@gmail.com I'm not female though.
I'd expect most or even all of them to be from gmail but I'd be skeptical if they all followed the same naming convention, whether its first.last or something else.
That alone is at least mildly suspicious but it doesn't prove its not legitimate. However in this case he also used other data points to make that determination.