I am going to answer this on the assumption that it is all asked in good faith and that OP is not just trolling.
- a previously unnoticed effect.
......
Not everyone agrees that loading a microphone with such a heavy load sounds "special." If the microphone is not transformer coupled (and sometimes when it is) that will generally introduce much higher distortion, and will cut the level in half (6dB), which usually results in 3dB to 6dB worse noise performance. That is why it is almost universally recommended to have a load impedance of at least 10x the microphone source impedance.
The results of loading a microphone with a low load impedance is relatively easy to explain with frequency response differences vs. load, and distortion spectrum. Lossless flow of energy and a quantum field of attraction around a neutral electron are not involved.