Serious post: The major good that Dodd-Frank did was to prevent a lot of the reckless behaviour that private lenders engaged in during the 2000s.
For instance, Dodd-Frank keeps banks from using depositors' money to fund speculative betting on world markets. This is to keep banks from, say, taking the money that you have with BoA or Chase from taking that money and investing it in high-risk companies building shit in China or Egypt.
This is an unambiguously good thing since when these shitty companies go belly up, the government (as it did in 2008) has two choices:
A) Replace the money that was lost on shitty bets to prevent ordinary citizens from losing all of their money, i.e. a bail-out
B) Let capitalism happen by letting the banks fail, which would impoverish millions of Americans
A counter-argument to this is that the 2008 crash happened because government regulations forced banks to give mortgages to poor people that were bad credit risks. This *is* the case, but most of the really bad loans were made outside of this system of quotas by banks that knew that the government would essentially cover any bad loan they made. The crisis would have happened government quotas or not.