Because if I attempted to create and upload my own art, it would be more hilarious and embarrassing than 90% of Deviantart. I also call out people for uploading shit art that isn't going anywhere and it would make me a hypocrite if I do the same.
3 (or however many it is) years later, nothing has changed.
I imagine anything I upload would get fucked by me being banned for playing Devils Advocate here anyway, so why bother?