You're falling into one of the most common pink sheet fallacies. The idea that today's legitimate companies were once pink sub penny stocks. They weren't. People who claim that don't do their homework. Walmart was only "pennies" if you look at splitadjusted prices. That is NOT the price Walmart traded at in those days. AND any successful company that DID once trade for pennies was NOT a pink sheet without an independent board of directors, or without shareholder voting, like ENZC, and garbage pink companies like it.
Glad you brought this up though as I know MANY in pink land have this misconception.