I understand the the risk of purchasing it, sure. And I would not at all have an issue providing the source code for the program. And it is written in Visual Basic .NET, the language I first learned and am naturally more comfortable working with. Although I think C++ is the most well known "hacking" language.
Edit: My main reason for it was personal use, keeping tabs on the family making sure they aren't visiting unwanted sites when I'm not around. I wrote it pretty well so I figured why not let other people have a chance to use it. I'm also considering just making it open source and taking donations in hope of getting anything out of that.