Pink is definitely not bad in any way, but as the others said it can be over-done like any colour. If you have pink hair, a pink top, pink skirt, pink nails, pink shoes, pink eyeshadow and pink lipstick, and that kind of colour scheme is all you ever wear, then I'd say you might be overdoing it a little lol.
It also depends on how "bold" we're talking. If we're talking pastel levels of pink, then even the above can work. If we're talking very bold and florescent, then you probably shouldn't be too surprised if people vomit as you walk down the street lol

But it's not because "it's pink" - the same thing applies to any colour.
You may want to have a read up on
Colour Theory. If you can get a handle on that, you'll get a better idea about what works and what doesn't. In a nutshell - it's not so much about the colours you use, but rather it's about
*HOW* you use them.
Personally, my favourite colours are purple, pink and fuschia kinds of shades. I find a black base works really well with them too. Speaking of such colour schemes:
Quote from: Pikachu on October 07, 2014, 09:01:05 AM
I definitely have a thing for pink ever since I came out. It could be that I just genuinely like the colour that much, or maybe I like it a little more than most because I spent so many years completely avoiding it. It feels good to finally be able to embrace the colour pink, lol.
Pikachu, hunni, your avatar is *AWESOME*!
#SoJelly!

(in case they change it, this is the image:)
♥︎*Hugs*♥︎