I actually think this might be a Z backwards

No, I don't think, it looks more like a brush or something like that !

Well I know it's a font because I actually made that image. It was about ~3+ years ago and the hard drive with the psd file and the fonts failed, so I lost everything. I managed to get that because it was uploaded to several websites as my avatar. I wanted to redo it though so I could get a better resolution picture than that one. And I don't remember if it was an S or a Z backwards.