I think anyone requesting a hardship needs to fly to Washington DC for a hearing with a panel of a NATCA person, a management rep, and some neutral third party not working for NATCA or the FAA.
Present the evidence for the hardship, let it all come out, keep the record of the hearing sealed if there are privacy concerns. Then if 2/3 agree the hardship is legit, you get it.
By making it harder on people and assuring more consistency in decision you will weed out more of the fakers and most of the people willing to go through that will only be the ones with legitimate hardships and really want it.
The funniest fact of the NCEPT era is that “black hole” ZNY and ZOA actually lead the country in release. They are just all hardships with rare supervision promotions mixed in.