Yeah my uncle played rugby for over 30 years with no major injuries when you don't have pads it definitely changes the nature of the game and ironically for the better.
Yes, mostly at amateur level. Rugby (union) also has problems with serious injury, and it shouldn't be considered a better, or safer American football. At national level many teams play a very direct style - smash repetedly into the opposition until you create a hole. I think the IRB should make whatever rule changes are neccessary to encourage more running-rugby, and make "the hit" less important.
> the IRB should make whatever rule changes are neccessary to encourage more running-rugby