Awesomepreneur in me says you should take that inner voice that makes you doubt because of public opinion out back and shoot it. Do what you need, to get the job done in whatever plan and stay focused. Most will fail, some will last but wounded, few will stick around and all of them will blog about it. Just focus on getting the job done, even if it's a local-centric social network for pets with sepia instagram avatars. Well, maybe I went too far, but keep focused on your own work, not others.