Iam c0ldfyr3, author of CS:S ZombieMod and before that Elite Prodigy and Darks Revenge, AMA!
My short bio: So I started to learn to program in VB when I was 13, I created Darks Revenge and Darks Revenge 2, Insane Chat and many other nefarious applications. So many people used to ask me to "teach them how to program", I had no choice but to ignore them. So many people got so upset that when I was 15 years old and getting 5k unique hits each day on my own website, there was an entire group of people called the Anti-EliteProdigy bringing in the same amount of people per day.
I started playing with AdminMod and AMX Scripting for a while and recreated a lot of the popular mods at the time to teach myself game mechanics and interactions. I then switched my attention to C++ and wrote CS:S ZombieMod using SourceMod for an original sum of $250 and have the brilliant mind of SourceMods BAILOPAN to thank for my success. I wrote other classics such as GoreMod and HostiTron at the same time. ZombieMod itself had thousands and thousands of maps, models and other user created content. ZM itself consisted of some stolen models from HL and the base CS:S maps, all of the rest was user generated.
I stopped with these when I went to South America around 6 years ago. I got back from the jungle 2 years ago. I was a full time Software Developer in VB6 at the time as my profession. Now I'm a C# Technical Architect for a very large financial services software company and I'm moving from Ireland to China in a month.
I went to college for a week of my first year and never went back :)
My Proof: http://www.twitter.com/c0ldfyr3_ie
TL;DR; I am the guy that sent you the betas every few days to anyone that donated as little as $1 as long as CS:S ZM was alive. I still have the list and can send emails from it :)
EDIT: /u/unsakred and /u/sirgaspar showed up in the comments. These two guys were making Yahoo! Booters before I could program, they are legends of the game. They were idols to me before I learned how to program. I'd like to take this opportunity to extend my gratitude to them for providing me with a path to where I am today. Thanks guys.