Cheating becomes a serious problem when the cheater choses a medical profession such as a Doctor, Pharmacist etc.
I really wouldn't care if they cheated on a entry-level History, Art, or other loser-oriented topic people would only take seriously because they don't want to learn much of anything new beyond what they learned in high school. The result of getting caught is the same, however, which doesn't really make sense. A doctor without an education in ancient world history is like a fish missing its bicycle
why are these exchanges
Simply put, to rob their customers...notice every exchange "got hacked", clearly inside jobs. Now that the price of crypto is crashing, there is pressure on exchange operators to "cash out", aka seal the deal on robbing their customers as planned, and convert it to a real currency before it all becomes worthless. So we'll be seeing these "issues" a lot.
He who has but four and spends five has no need for a wallet.