lol what? I'm blonde and love it. Sure I've dyed my hair every colour in terms of naturally occurring ones, be it bleach, dark brown, light brown, auburn, red, black... Not because I ever hated being blonde. Since my complexion is matched with my natural hair colour, a dark dirty blonde, I just so happy to be able to not look like a complete martian with other hair colours. Once I started dying it, it became a bit of an addiction. I'd get bored with my hair colour and want to try a new one every few months.
Personally I love my blonde hair and would never dye it all unless my hair itself changed to a color I didn't like first, and I doubt I'd try to dye it back to blonde because of how harsh I've seen it to be when you do it regularly, like my sister did since her hair is naturally brown, she ended up having to get her hair cut into a bob because of split ends and just dead hair to get in back healthy again. The only thing I don't like about blond hair is it carries the stereotype of being dumb.