Fear mongering is posting anything that may cause someone to shy away from a certain product or action because that have they have been suggested that it may be dangerous or harmful when there is no evidence to support that claim.
The point is if you see a particular brand or model of zapper that you have seen convincing evidence that it might cause harm, you should point that out clearly. It is extremely unfair to say that all zappers are harmful or dangerous because there are many different approaches.
There has been over a million zappers sold since their introduction. Some are cheaply kludged and probably as worthless as you seem to feel that they are. ParaZapper is not among those. Especially the newer models.
I assume that you used some zapper. Instead of attacking me, why don't you tell people what zapper you used, how you used it, and the results that you had, or the lack of results thereof. That would be significantly more meaningful to people that need to know and want to know.
As a note, you might also consider that most of the original type zappers are like a model T compared to ParaZapper's Ferarri the MY-3.
Even our cheapest, the 6-Pack, currently only $109 US, is far superior to almost anything out there. Actually 6 different zappers built into 1.