I am sorry i was thinking specifically of interest rate derivatives (SWAPs) that were being used to synthetically produce a "fixed" interest loan. Problem was banks, and i will discuss Bank of America specifically because i used to work there, were using these across all business lines. For instance, Pre Dodd Frank they would take a Priest that wanted to buy a new church for his congregation. Instead of setting up a mortgage style fully amortizing loan they would enter into a swap contract which has a monthly mark to market "MTM" based on LIBOR. Now if you entered into that contract in 2004, by 2008 you were completely under water due to the free fall of interest rates. Do you think the priest has any idea what that meant? Nor did he have any idea how to pay his multi million dollar MTM when it comes time to refinance the note. This is an extreme case but it happened way more than you think.The Bank loved these loans and used them very widely in all segment because they could book all of the revenue from the SWAP day 1 (SWAPS are a third party contract with a winner and a loser). This is extremely advantageous from a revenue perspective because a traditional mortgage style loan would see revenue come over time. With Dodd Frank, there are actual guidelines of what a qualified investor is and who has the savvy to enter into an complex agreement of this type. IMO, this is a good thing that came out of it.
More to follow on some of the bad's of the regulations.