Option B really never works. Those who have a relevant set of skills (and it is a lot of skills from different disciplines required to run a business) - can ea

Option B really never works. Those who have a relevant set of skills (and it is a lot of skills from different disciplines required to run a business) - can easily estimate how much you can earn from website like this, so if they didn't do it before - they won't start now. Those who didn't know how much businesses like this makes - lack a ton of other skills to compete. And you can't cheat a ton of time and money investment. If they didn't start a business like this, 99,99% they won't. And if they will, there must be a ton of stars aligned to make it into any viable competition.