Part of the reason that I like my local rifle club, is that people aren't allowed to just go and do mag dumps. However, I wouldn't want to infringe on anyone's right to do that, on public land, providing that it isn't a safety risk.
Some people believe that firearms are meant to be used for certain things:
-law enforcement / military
-marksmanship / sport shooting
-self / family defense
-heating up a barrel and making noise
Usually, a little bit of "keeping the peace" - being aware of the laws and your surroundings, and being respectful of others - goes a long way
Ex - Navy, Persian Gulf Veteran. Loved shooting the M14, 1911, M60, M2