I liked Waluigi before it was cool.
No really. Latched onto as soon as I saw him in Mario Tennis 64. He needs the glowing eyes back.
I'm sure there's more than a few... fringe cases, like yourself. But the internet at large probably only started liking the character when BitF and other fan works gave him the spotlight.
The crotch chop in Strikers Charged probably helped that too.