@holmz
Back EMF?? No. Any cartridge is a generator of power. When the load on any generator is reduced in resistance, more current can flow. This energy has to come from somewhere (otherwise a new branch of physics would be created...) and it comes in this case from the motion of the stylus in the groove- the cantilever becomes harder to move.
You can easily demonstrate this principle for yourself. A loudspeaker operates on the same principle of a moving coil in a magnetic field. If you have a woofer with nothing connected to it you'll find it easy to move the cone with your hand. If you then place a short across the terminals of the speaker you'll find that the cone is a lot harder to move.
What the load resistor does is three things: it detunes the resonant peak I mentioned earlier, thus eliminating the RFI and it causes the cantilever to be stiffer, possibly reducing the ability to trace high frequencies and certainly affecting the mechanical resonance of the cartridge and arm combination.
So you solve a problem for a phono section with a design bug, in exchange for introducing possible tracking issues. Not a good set of options IMO.