Ah it'll take too long to explain. Basically, anyone can program any programming languages on Tauchain that could be close to natural language, just by interacting with the platform. There's no universal language here. Since all discussions take place on Tauchain are programs in themselves, people can even use it to discuss stuff like application development and have the code synthesised from discussion. But of course, it will all be very difficult in the beginning, I suspect we'll be like babies learning to speak.

Edit: better to read the creator's blogposts, i'm likely to have explained it incorrectly.

But you're right. It's ironic that people praising decentralization are doing it on highly centralized platforms lol. We all have Stockholm Syndrome to a certain extent.

Well it's nothing wrong, just somewhat wasteful when they could've been contributing to the distribution of cryptos. Still hard to move since Steem-based apps aren't matured yet and Twitter / Facebook / etc users have massive lock-in costs from having their friends and followers there. Maybe just a matter of time.