[SCAJolly]

Official nick? You said, I quote: His main objective is to immortalize himself by fooling people into thinking the M113 was ever called "Gavin", a moniker he himself invented...

You don't put much fact to back up your own accusations, and you ridicule arguments with a "Haha" and a "No, wrong". That's extremely easy. If you cannot lean back on such a tiny issue as an unofficial nick (and what I pointed out was never that the M113 was officially nicked Gavin, what I pointed out was that your initial statement was wrong, seeing as someone early on had in fact called the M113 Gavin), when you provide no better alternatives to what is being suggested, you are much too involved in the discussion. If you cannot remain a tad objective and admit you have some unsupported believes, there's not much more to your arguments than the typical "My father could beat your father", followed by "Nuh-uh" and "Yuh-uh".
Myself, I think FAS, Wikipedia and others provide the M113 with an un/official nick of "Gavin" for a reason, be it a good one or not. However, your initial point (which was the one I was after all pointing to, but which you feel forced to defend above all and a potatoe) has been corrected: It was not the idea of the site's author to falsely make people believe the M113 was called Gavin.
If you feel the need to read between lines that are not there, that is not a liberty I will take away from you, but there's little reason to defend a grain of sand.