During the IC3 reporting process I was asked to submit the name of people behind the scam, if known. I knew one of them because the scammer asked for a wire transfer to a named account at a bank in Oregon. Probably a mule.
Does anyone at the FBI or other agencies actually do anything with this information, such as contacting the bank in question or correlating it with other investigations? That's what I would expect if law enforcement were serious about enforcing the laws on the books. But there is no indication that anything happened, other than a confirmation number being spit out on a web page that my report had been received. That's why I made the "black hole" comment earlier.
If the IC3 portal highlighted specific cases or stats ("thanks to reports submitted to IC3, n investigations were initiated/suspects charged/convictions secured") that would really help convince ordinary victims that the government is taking tangible steps to fight this scourge of small-scale scams and frauds that affect millions of people every year.