Pretty funny story. Back in late 2014-2015, I found that my previous name was just visually unappealing and difficult to say. So I wanted something that resonated with me. Of course I played Minecraft for a while, and I've always wanted the implementation of a sapphire ore. So I named myself after it. Except I completely misspelled the word and ended up with SapFireMC. It wasn't until a year later that I actually found out, but at that point it was already too late. I never did end up changing from there simply because of all the people that knew me by this alias, so that's how I've kept it to this day