There are two types of gaming groups.
The casual group, composed of friends/acquaintances that get together at the local hobby shop, make it when they can, and have a constant influx of new players as old players drop off.
The intense group, composed of longtime friends that have been gaming together for years, once a week without fail (barring natural disasters, weddings, and graduations).
Neither type of group is worse or better than the other, but it does make for two very different type of reactions to "nuclear weapons." David Noonan's group must very obviously be of the second type.
Longtime friends will want the game to be enjoyable for all, and so will have no problem restricting their characters or refuse to exploit a loophole if it will detract from his other friends (PCs and the DM).
Those of the first group will tend to seek personal enjoyment, sometimes at the expense of others in the group, if they can. Without the personal connection or expectation to remain in the group, player's might tend to take advantage of what they can.
My thoughts, anyway.