This is undoubtedly true from a purely scientific standpoint, but I can say that galvanic corrosion due to these factors was never a problem with the thousands of mechanical joints on each of the submarines that I had fluid systems new construction design and life cycle maintenance engineering responsibility for over a period of 30 years. This in spite of the fact that it was generally a high humidity atmosphere much of the time. We even used certain graphite based compounds on threaded fasteners in joints outside the pressure hull in sewater exposed applications and never had those problems. For a military rifle I can see it, if one needs to be extra sure, as you have no control over environmental conditions during use and Soldiers and Marines get rained on a lot. For the average shooter, probably not a big consideration, but an antiseize compound using MoS2 (molybdenum disulfide) would certainly solve the problem, real or not, though finding it for sale at your local hardware store would definitely be a problem. And if you use an MoS2 based antiseize, make sure you reduce the applied torque considerably over that used with a graphite based compound - that stuff has a really low friction coefficient.
as in electrolysis 
