Making a social media platform invite only was such an obvious mistake, I'm surprised a company like Google made it. The product in G+ was not the platform but

Making a social media platform invite only was such an obvious mistake, I'm surprised a company like Google made it. The product in G+ was not the platform but the potential social element of it (the user's friends and family). "Hey here is an invite to this thing that none of your friends can get on"