As much as I think big tech sometimes abuses their power and leverage unfair advantages we shouldn’t stifle innovation by requiring everything to be totally open from the get go. If there’s zero switching costs to go to a competitor then what’s the incentives for companies to spent a lot of money and time building a product? It’d be very risky (especially for small players actually) and they’ll have to do “safe” incremental functionality until they have a larger user base and can afford to invest in R&D because it’s less likely many of their users will leave all at once. It’s the same reason why we have patents for things - to incentivise the investment in R&D. Maybe there could be a threshold for time+revenue+users that trigger the need for openness? Same should be true for social networks and when we can/should set a higher bar for holding them responsible for abuse on their platform I feel.