PCB design now supports LEDs and Matias switches 10 years ago
Turning capslock into backspace has been one of the best usability improvements in my life. It just feels so natural. And if you look the keyboard it totally makes sense to have it on home row.
This, on a standard Elcheapo rubberdome keyboard.
I even throw away the original backspace keycap.
The downside is I've quite alot found myself subconciously struggle understanding why the "backspace doesn't work" when hitting capslock on other computers.