I can't disagree more. First and foremost, if you have to keep quiet to survive then something is seriously wrong with your business model. Your product sucks

I can't disagree more. First and foremost, if you have to keep quiet to survive then something is seriously wrong with your business model. Your product sucks and you either can't win over the competition or you're promoting only to the naive (whereby keeping quiet protects your shortcomings from being "found out"); either position sucks and I'd rather fold. Second, being open about your product affords so much more advantage over being stealth. Attracting an audience is not just good for building your customer base. Who knows, you might attract investment, press coverage, build your personal and commercial reputation, etc. Third, it's hard for a team to be excited about a product they cannot discuss. Keeping the team's excitement, motivation, and morale high is paramount to success.