I almost feel like this discussion is akin to the "NEVER operate lean of peak - you'll burn up your cylinders!!1!" mentality that some piston pilots and mechanics continue to believe.

Obviously a towbar should be used...but let's be real, if you are using a hand towbar there is almost no way to generate enough force to move the aircraft fore or aft unless you place your hand on the base of the propeller; at least that is my experience with anything heavier than a Warrior or 172 (to include but not limited to Arrow, 182, , Bonanza, Saratoga and SR22).