Developers have a responsibility to users. At no point in human history have so few people been able to reach so many with so little oversight. Yes, we have had mass publishing for more than 500 years. But to reach an audience of millions there would have been dozens of reviewers, fact checkers, editors, and investigators. Now, a very small group, or even a solo developer, can reach their hands into the private lives of millions of people in a matter of days.