Freicoin has to be among the worst concepts in a currency ever conceived. Why? Because it does the exact opposite of what it tries to do. If I were to create a currency to benefit the wealthiest 0.001% of the population at the expense of the poor then demurrage is the way to go. To understand this one simply needs to consider that the typical billionaire may actually have less physical cash than the typical occupy protester. Billionaires can easily avoid the cost of demurrage or inflation for that matter by "putting their money to work" but the poor cannot because of the fees involved with "putting their money to work" relative to the small amounts they have.
That's not exactly what Freicoin intends to do. Their goal is for Bitcoin to remain the long-term store of value, while Freicoin becomes the high-velocity everyday currency. Even poor people could exchange effortlessly back and forth because they're both cryptocurrencies.
"Why would I ever use Freicoin, then?" everyone asks. The theory is that loans would be easier to get in Freicoin because of its interest rate. I'm personally not 100% convinced that these loans are desirable, so the Freicoin forum would probably be more inclined than I to debate its economics. I say we just do an experiment.
So if one believes that demurrage is a good idea, they can put their money where their mouth is. Freicoin will either confirm or disprove the merits of demurrage, and IMHO that's better than arguing until we're blue in the face.
Last I checked the occupy movement had it's own cryptocoin similar to bitcoin but with characteristics more like scrip. I'll put on my tinfoil hat and guess that was a malicious creation to put in a division between the occupy movement's followers and bitcoin. Scrip makes more sense from their point of view but supporting bitcoin is more likely to achieve the greater part of their objectives than trying to get their own currency off the ground.
