What's negative in this? When was there a change? Has not OTC always meant "pink"? If so, nothing's changed in recent years, has it?
"A daily publication compiled by the National Quotation Bureau with bid and ask prices of over-the-counter (OTC) stocks, including the market makers who trade them. Unlike companies on a stock exchange, companies quoted on the pink sheets system do not need to meet minimum requirements or file with the SEC. Pink sheets also refers to OTC trading."
http://www.investopedia.com/terms/p/pinksheets.asp