It had user accounts and it hosts prodigious amounts of porn, so it ran afoul of the part of the law that says that if you have user accounts and host user-generated content of any sort you have to make sure you're not showing porn to children.
It's annoying, but Imgur really do need to get a handle on things because that's where people host all the CSAM they post into Matrix channels.
Yes, although I wouldn’t take that code at face value; the OpenLibrary implementation was more of a test to see how flexible an implementation of the metadata service can be.
When ready, these will be documented and extensible!
Your second part is not true. As the blog post makes clear, Uber cars drive under the license of a minicab firm (as personal hire vehicles), and are therefore exempt from the congestion charge.
Given your first point, could you please share the like-for-like data on uber vs. black cab time spent waiting to be hailed/booked? That sounds very interesting.