In some ways I agree with both WUB and Researchok. It does feel a little ridiculous to compare internet trolls and stalkers to people actively engaged in violence. But the other side to this is that I feel that most bad behavior by humans is the result of common forces such as hatred, greed, obsession, delusion, fantasy, ignorance, boredom etc. That most negative behaviors could be compared as simply relative amounts of these factors.

I don’t agree that untreated pathology always gets worse though, that’s not how it works. Most pathological organisms have evolved to not kill their host. Rather they try to feed off the host as much as possible while keeping them alive and healthy enough so they can continue to do so over an extended period of time.