[SubiculumCode]

Depends on how much you are hanging the definition of quackery on the presence of intentional fraud and charatanism.

I meant the usual inventors that claim to be on the verge of becoming miraculously rich after the miraculous achievment of building an unlimited energy or propulsion machine, but alas there is still some small issue.. I'd love to show you, but you'll need to sign this NDA first.

When an aquaintance of mine started doing this, trying to build a perpetual motor using magnets and suction pumps, and insisting I join his madness by signing a NDA, over and fucking over, refusing to get a job to support his family, feeding them dreams of riches that are born only of a psychological inadequacyand need to be special..

well pooh.

[SubiculumCode]

At least this proof didn't come with an NDA :-)