I was pagan for ten years, and involved in the pagan community. My evidence is first-hand.
I think you are overreacting to the comments here and you are doing so out of a lack of understanding into the theology and worldview of neo-paganism. It has been said several times that many Wiccans and pagans follow a code of ethics, and that is true. Wiccans who deliberately use things like curses are going as much against their Rede as Christians who pray for bad things to happen to others. There is a difference though, and given your understanding of the spiritual world I am not sure you will accept it, but I will explain it anyway.
In Christian prayer we ask God to make certain things happen. That’s it. If we ask God to do something that is evil, then that is a sin and it is a stain on our soul. In the meantime, God will not do our bidding.
In neo-paganism there is no concrete right or wrong, only a kind of vague sense of primitive karma or “do unto others”. Complicating this is the fact that a great many pagans are psychologically and/or emotionally damaged, and the Wiccan Rede’s exhortation to “An Ye Harm None, Do What Ye Will” is more often misunderstood than not. In pagan magic, steps are taken to make things happen directly, or by invoking entities as helpers who ARE willing to do their bidding. Nearly always, these entities are poorly understood and have a tendency to take things into their own hands. Throw all this in the mix, and the results can be very weird. It isn’t just praying to one deity who may or may not respond.