osweld, oldbuick, and boxer are all close personal friends or actually cvc (who was recently banned).
Many thanks to Gumball for nailing this one down with IP searches. We found common IP addresses to all of them except cvc (who was claimed to be a friend of boxers in a PM from boxer to me).
Note that cvc is claimed to be a former Marine, and boxer is claimed to be a current Marine officer. Yet oldbuick and osweld are both claiming to be posting from an Army Reserve unit in NYC, but it'* the same IP as boxer. I believe that boxer'* claim to be 'going over the pond soon' may be an attempt to garner symathy due to our recent loss of Chad Vollmer.
What the actual relationship between these registered users actually is may be in a gray area, but:
Boxer, oldbuick, and osweld are all posting from the same IP. boxer claims to be a friend of cvc. Marine officers don't post from Army reserve enlisted men'* IP addresses.
Good work, Gumball. Very well done.