I load mine at 47K and it works great.
As you decrease the load it sees, two things happen. The first is the output level decreases especially as the load value approaches that of the cartridge itself but 100 Ohms will have no effect at all in that regard.
The second of course is that the cantilever gets stiffer, less compliant, since you are causing it to do more work.
Depending on the tonearm used and how well the phono section reacts to RFI, the value a person arrives at will be different. So I would not rely on other's experiences without knowing the provenance.