Leave it Pinkcoin!
Pink is too broad and confusing. When people hear I bought Pinkcoin today they become curious and are more encouraged to look it up and potentially invest in the idea themselves. Saying I bought Pink today. Pink? What could have been pink? anything but whatever it was I'm not really interested in the mystery pink item now I'm off to think about something else. That's a potential lost investor based off confusion.
Too bad someone forgot to tell Nike to name the brand Nikeshoes when founded. Imagine how big success could those losers have by now.

The confusion is a relevant point, but those familiar with cryptos would know and others would be confused whether Pink or Pinkcoin in my opinion.