The sequence would typically work like this:

1. Somebody sells an award.

2. The airline finds out and takes measures such as invalidating the award, removing the seller from its FF program and canceling all of his/her miles.

3. The seller, being upset, having no recourse within the airline and being in the U.S. where people sue anyone for anything, sues the airline for doing so. This is where the legal system and the courts get into the act.

4. The courts then determine if the airline was within its rights per the program rules to do what it did, perhaps involving whether or not the rules were fair, properly announced and equitably enforced, and what it thinks a fair resolution is.

Some may think this is making a big deal over a small item like frequent flyer miles. We know better! (We also know the airline is within its rights to enforce rules that the members knew about in advance, so we don't sell awards.)

As legal advice this is worth at most what you paid for it, probably less.