I gotta say I keep my numbers only on my sim for your same reasons... My colleagues have all numbers in Google, I don't like it...
Well web2 is becoming utterly trash, so it's obvious hive can't be staying the same as before, it eventually got even more famous now than 10 years ago...
I wouldn't say Hive is famous, unfortunately. We could be more famous if the funds for promotion would be used the right way, but it is what it is.