[kovidgoyal]

@BR The server does nothing to inhibit backspace that's up to the browser. At elast on my linux system pressing backspace repeatedly in chrome on any webpage causes a popup to show saying use Alt+Left arrow.
The book dates are correct, they are just formatted strangely as M<number> instead of month name.
The code asks the browser to format the date using the local conventions. For some reason on your system the local convention is to use M<number> instead of month names. I have no idea why that might be -- I'll have to do some googling to find out.
As for ids, the book details panel uses thirdparty metadata download plugins to convert things like barnesandnoble ids into links. The server has no access to these. It might be possible to fix that, I'll have to look into it.