Curse? Is it really that much people have abandoned projects based on his characters?
It's because no-one was able to finish they're Jim Thermic expack, except for one or two writers, maybe more, I don't really remember.
And after they have started a JT expack, they mostly disappear from Fenoxo forum, the internet, or even planet earth.
They just cease to exist.
Or sometimes, very rarely, in the middle of the project or after it gets finished, the writer abandons it, does another project and never comes back to it, or have the ability to write severely reduced.
I may have a crazy theory on the matter:
Since Jim Thermic's writing was so good, someone got so jealous of his writing that they cursed him with some kind of magic on forbidding him to write smut forever.
And that whoever tries to add to his projects has a high chance of getting cursed to random degrees, and disappearing is one who has the highest chance of happening.