[Elecraft] Posting serial numbers

[Alan Bloom]

-------- Forwarded Message --------
Subject: [Elecraft] P3 For Sale
Date: Sun, 18 Dec 2016 13:10:36 -0500
From: Joe Word <n9vx.joe at gmail.com>
To: elecraft at mailman.qth.net

 > For Sale .... Serial number 36xx. ...

I've noticed that people almost never list a full serial number when 
posting something for sale.  I'm curious why that is?  Is there some bad 
thing a nefarious person could do if they knew the serial number?

Alan N1AL