Thanks to the ever-astute madgal72, we have an update on American Airlines' voucher-redeeming procedures! The US Department of Transportation is fining the airline $90,000 for not disclosing the fees.
Compared to what AA makes in a year, this is chump change, but it is the cost of at least one decently paid employee (with benefits). In my book, it's at least something!
Thanks again, madgal!