So called "calling frequencies" are not intended to be "call only" frequencies. That seems to be wide spread misconception. They were created to be a spot just to find traffic, a point at which to congregate. Are you sure this guy is really an oo? OO's usually don't get involved with local, "in town" issues, nor the "what ifs" and "rumor mills". It is also not their practice to announce proposed and/or upcoming rule changes. Short qso's on calling freqs are perfectly acceptable and are common practice. If the FCC were to (which I doubt very much) designate such freqs as actual, nothing else, "call only" most ops would just figure out another freq to use in place of the "mandated" one (rumor)= making a channel such as "FM 52" totally unused. It would be would put in theirs 2 cents worth on this.