Me and my friend started exploiting the bug like crazy, spending hours literally just doing that. The problem was that the process to exploit this bug was very convoluted and a pain to do manually.
I had no experience of programming nor anyone around who knew anything about it, but I felt that there must be a way to do the whole process automatically. Computers are meant to automate stuff, right? Anyway, I started investigating online and found AutoIt, which is a BASIC-like scripting language that allows you to automate GUI stuff.
I then began building a script that did literally what I had to do manually to exploit that bug. And literally means literally. The way I made it work was by scanning colors in coordinates (to check whether a window it's opened, etc), moving the mouse and clicking. The script was full of duplicate code. I didn't knew about loops. All I knew was if conditions and mouse actions. I even remember having to go to a forum and asking for help (in super broken English) because I wanted to keep the program running indefinitely (they told me to use `while true`). But it worked.
Anyway, I spent about two weeks of after school afternoons building this bot. Then, when I had it working, got banned in a matter of days :^)
This might not seems like much, but I remember it fondly as this was my introduction to programming and the reason this became my career. I'm still holding onto the (terrible, terrible) script.