I love D&D, and I also character design. I was creating a character and she was a teifling. Her name was important to her backstory - and it needed to be in infernal. So I went online, and looked for an Infernal translator. And looked, and looked, and looked. Nothing! I found a variety of demonic languages but none of them were specifically D&D's Infernal, just demonic. I was upset by this, but I settled and just chose a demonic name. That is, until I had the light-bulb moment: "Wait... there's no Infernal translator, but why I can't just make one? I mean, there's plenty of other fantasy/fan language - how hard can it be!"