TL:DR
What I found about karma using this module:
If you were to set it at a very high number, it creates a waveform or graph like a frequency that is very low, the up and down parts are far apart. This can make it look like an eternal rise and you can't see the negative side. The max number is 476, at this point you will experience "instant karma" and the wave collapses. (This is what happens with the failed "cold fusion" scientists are trying to create, it breaks down, but if it worked, it would create a kind of technological communism, an extremely dangerous energy source which will send most of its users to hell in the end.)
But there are ways around this, and one of them is to use communism to build a large system, then take in energy and feed it so the wave can be stabilized. That is what is done today with the debt based economy. (Yes it's american communism at above state level, but almost no one is aware.) They're doing something very dangerous, moving karma around at a level where if the system broke, they'd have instant collapse. They think that as long as they have a lot of people in the system, they can handle the karma collectively. Sure, they can, but at what cost? What happens if you want to leave the system? You have to withdraw your karma also, and it's horrible. So it's a trap that gets worse to escape the longer you stay, but it also has to end at one point, so no one gets away with it. (That's why people in these systems talk about Judgment day.)

Now what happens if you set the number high, but you are a balanced person not connected to a system, or you are unintentionally connected because you live today in this economy? Well you'll have the far end of that high number wave come back to hit you, like a water faucet turned on and the hose is whipping back and forth. That end will be at 1, killer fairy, and it will be a background suffering you can't escape.
But if you turn the high wave down to manageable levels, you can also drag the killer fairy set endpoint back up, at least to djinn, 2, and then it's no longer a relentless suffering. Your karma is likely to be entangled like this, and it has to be corrected bit by bit. Take down the main high settings, then raise the ones that were stuck at 1. That's how you fine tune your life and find balance.