Keep in mind, companies typically hire advertising companies to create their branding, and as part of that all public communications must comply in every detail, to the brand specifications. Additionally, they often turn over ALL marketing to an advertiser. So the idea would generally need to be forwarded to the advertising/marketing firm and accepted ahead of that firm's own ideas. This dramatically reduces the possibility of a customer marketing recommendation from ever happening. Marketers tend to lose value/credibility/viability when they crowd source their flagship offerings.