I used to discuss these kind of theories online. Or, rather, these kind of people would visit the forums/boards I used to visit, and then present their "great ground shaking theories". As the author here states, most of these theories had fundamental flaws. New particles named after themselves that didn't explain anything the model of physics does today. Or the theories weren't consistent with observations, for instance they failed to explain how pushing one object of 1kg into another object would end up.

Most of these people were old, many engineers (edit: which the article agrees with) with a former basic knowledge of physics. They kinda reminds me of the old professor in the movie "Proof", that has lost grip on reality and invented his own "proofs". Or the movie "A beautiful mind" when he's on his worst. It's a bit sad, really.