I didn't come up with it, I always played fretless in jazz...I just kept it going in metal. Basically I loved the sound of it, and snuck it into metal after jazz band practice. I thought it was normal at the time, and then everyone started freaking out about how it's so different. It's really not such a different instrument that everyone thinks it is. It's a variation of electric bass guitar, it's played the same and tuned the same...the real difference is in the ideas of the player. And that holds true for fretted bass, guitar, drums, alto sax, painting, landscape designing, cooking...
I'm proud that I can hold a title of being slightly original in a sea of unoriginality. But it was always there, for me anyway, I didn't think I was setting out to do something original. Bassists I looked up to played fretless already and I was just inspired by the sound that it was capable of making, but it was from the hands of those I looked up to that the sound came from, not the gear.
And so it must be for you, from your ideas, from your hands, from your inner voice. It's not the notes that make you special, but instead your interpretation of those notes in your own way. It's not the trivial detail of the instrument that makes one stand out from dismal obscurity, but rather in the level of interest one can captivate with simple entertainment.
Chew on that.
SDG