A rattler and a shotgun blast
Arizona accepts anonymous complaints.
While I never turned in an anonymous complaint and never will, I think it is important that the regulatory authority consider them for a variety of reasons.
The main reason that anonymous complaints are a good idea in Arizona is that the incompetent Arizona Board only slaps the wrists of the appraisers who commit the most egregious violations, and, in many of those extreme cases, the AZ BoA actually dismisses crimes, like fraud and forgery, without any investigation.
So, the only result from my signing ~eight complaints about major USPAP violations during the past ~12 years is to make blood enemies of the authors of those lousy reports. Due to the lack of any effective penalty in Arizona, those appraisers continue their lying without abatement. Nothing changed in the way those appraisers operate.
The most serious consequences of my signing complaints are a four foot long diamondback rattlesnake dumped into my back yard and a shot gun blast to a directional street sign in front of my house. I cannot prove who did those things. However, the authors of the reports I've turned in to the AZ BoA are suspects.
Many appraisers won't consider reporting even the most serious USPAP violations due to weak back bones, particularly if there is a chance of facing a poisonous snake or gunfire. Anonymity allows safe participation in USPAP enforcement without having to take up arms, or having to wear fang proof shin guards or having to install video surveillance with off-site recordings.
I shot the rattler before it struck one of my dogs or my wife or me, and no shotgun pellet hit my house.
If there had been more serious damage from venom or lead, I would have scalps of several lousy appraisers on my yard light pole, and my same signature from the complaint letters sent to the AZ BoA would be tattooed on several licensed foreheads.