The first thing I do on any new Firefox install is remove Pocket and Hello off the toolbar. I'm pretty sure most people do the same. In fact, I'm struggling to remember what Hello actually is...
99% of people are going to be in 192.168.1.0/24 or 10.1.1.0/24. so it only takes 508 guesses.... not to mention that everyone is 127.0.0.1.
EDIT: FF: about:config, media.peerconnection.enabled => false
edit: Now my ip is reported as "ifconfig | grep inet | grep -v inet6 | cut -d" " -f2 | tail -n1" which is amusing.
I think the problem with "Hello" is more of a marketing and publicity one. Nobody uses it because they aren't being made aware of it.
FTFY, assuming you're looking for the Henry Ford reference. People actually DID ask for the telephone. It was a natural extension of the widely deployed telegraph system.