What's the rush? The BBC Microbit project is crap. If they had bothered working with Raspberry they could've launched in 2015 or 2016 with an actual decent product. Now it's just some lame microcontroller when it could have been a full computer.
You only think you were never on facebook. They have photos of you, they know who you know and where you've been just from the content other people post on there (facial recognition in photos etc.) Also, every time you say a "like" button on an outside website, that image is often hosted on facebooks server, so they know which websites you are visiting and what sort of articles you like to read. Unless you have a plugin like Ghostery they are already tracking you.
This will give facebook alot of control over which articles people see. I hope that people don't base their opinions only what they read on facebook. I hope people continue to look outside facebook for news. If not then zuckerberg could become too powerful. What happens if a news company reports negatively about facebook? Do they get dropped?