What!?! "Over-leveraging and bucket shop reasons" aren't enough?
Jeeesh!
Well then, I'll add the fact that while foreign exchange *should* operate (in a fiat currency world) on the tides of underlying fundamentals, it instead operates on the waves and turbulence of black swans and black swans and black swans and b..........
The forex trading market is set up such that those who weather the black swans with their size, also have instantaneous response-times to the fundamentals. In the rest of financial trading, size is a hindrance: it is a world of a narrow strait, through which pass ponderous supertankers and nimble speedboats and aggressive yachts -- what some may lack in size or heft, they generally make up for in agility. But the oceans are the same for them.
In foreign exchange, the nimbleness and agility of the speedboats and yachts is still less than the wave height of the roilsome foams over which they mostly sail. They are doomed. From the start. The supertankers? They don't care a whit, they just muscle forward, looking/caring only for the fundamentals (the tides) that will smooth out their passage over time.
So yeah, over-leveraging invites the speedboats to embark into 20' seas.
Stupid. Bucket shops facilitate.
Obscene. And Putin and Trump and Kim, and the S'aud princes and the South American coca-kings and plutocrats world-wide, brew the next idiot swan into existence, and we all scratch our chin and mouth, "Didn't see
that comin'!" and thank [The Mudshark in Your Mythology] that we weren't in 4X...........