You know someone likes your software when...

...he buys it twice. Here's the story:

"I bought Poker Copilot twice because I absolutely needed it at the time to make money. My email was broken, and one of my hard disks containing the Poker Copilot license key was broken too, so I bought it again."

Of course all he had to do was e-mail me for the original key, but it may have taken some hours or even a day for me to respond.