Rocky > would be to have a larger tzedka organization weed out the Reuvens from the Shimons with investigations as to who is who
this probably worked when communities were stable and many people knew each other for many years. Now, we do not often know what “large organizations” are doing, and it creates a field for abuse or at least for lack of urgency. You might do better by prioritizing people you know personally or those for whom people you know personally can vouch for.