They lost me in the first paragraph with the statement about static electricity being taught in schools but generally considered to be of no importance.
Like others have said, they don't have seem to enough knowledge of electricity and power distribution to see that the claims of free energy are incorrect; nothing free or unusual about that electricity at all. If it's the fact that the actual electrons don't leave the lines, they might want to look into using a coil of wire around a ferromagnetic core (aka transformer) - the electrons flow right back into the grid without leaving, so it's not stealing!
In all seriousness, there's nothing really fundamentally different than how a transformer works; it's using electrostatic force to push currents in an isolated "secondary" rather than magnetic flux. In the end, the mains do work on a load by using energy.