The number 8 is considered lucky in Chinese culture. I guess you're gunning for good fortune perhaps?
I probably have the most uncreative username: Ash, short for Ashraf. I'm not good with thinking up good usernames. At least its simple. But it was kinda hilarious to be mistaken for a female during my early days here
I think the worse username I had before in forums was "zero_play". I had no idea why the heck I chose that.