Going Pink for GACR wouldn't really matter. The price can still go where it wants above a penny or below. They just wouldn't need to comply with as many of the filing rules for OTCQB, plus if they want to stay on or go back on OTCQB they will have to pay a good chunk of money to do so.
Really this will push companies to be more transparent as they will want to keep themselves on the OTCQB. I'd expect more compliance from them in filing, and I wouldn't be surprised to see more openness from the companies as well in keeping shareholders updated on projects, pr, and news.
Then I am sure you will have other companies that will let themselves drop a tier either because they can't keep up with the necessary filings on edgar or on otc, or they can't keep the .01 requirement for the one 30 day period each year.
Ultimately GACR shouldn't have any problems here if they get filings up to date, and continue to stay above .01.
All IMO