I don't think we can compare Libra to Steem or any other social media blockchain technology

I don't know If I'm getting this right, but I believe facebook just wants to create a digital wallet to take over on online payments. They are not really interested in using the blockchain to improve the social experience on facebook, instagram or whatever, they want basically to the same Wechat is doing in China, make you use their app to buy stuff, they take a commission and get the data of your transfers to future monitoring our activities and sell that to their advertisers.
I believe at some point, We, the people (or, We, the creators and consumers of digital multimedia), will say enough is enough, and then we will see a huge horde of people migrating from the traditional services to the blockchain. Don't even think that this Libra shitcoin is going to change anything on awakening the people for the limits of freedom of speech imposed by those companies. They are not and will never be the solution, we are.