Just for an alternative perspective, while elder abuse cases are the most frequent cases we file below threshold, we still rarely file if they're under $5,000. We report a lot of elder abuse via state reporting, and very few of them become SARs. Factors that may cause us to file are if the subject is a caretaker or someone who lives with the customer, or reasons to suspect the victim's health or safety are in jeopardy.
Unfortunately, elderly people are victims of low-dollar scams all the time, and I don't think all of those cases require SARs.