I think we all have our moments of madness, especially if it's our "favorite" subject.
For example...mine is Fletcher-class destroyers. I wrote a book on them, have in excess of 5000 photos, am writing another book on them, and basically it's the only class of DD (ok, maybe Gearings and Sumners) that I'm interested in.
When I buy a Tamiya kit, it's basically for the hull and deckhouses. Everything else generally gets replaced with resin or brass aftermarket parts.
To the average modeler, building it out of the box is probably just fine, or maybe adding some PE railings to it.
But if you know the subject, all the little inaccuracies nag at you, and there's no settling for something you know is wrong.
Do I do that with other models? Sometimes, but usually not. Sure, I'll add details to a model because it's within the scope of the project...like my T-34/85 project.
I built the 1/16 Trumpeter kit with the full interior then decided I wanted to try the same thing in 1/35...so...1 Dragon T-34/85 has now turned into 2 PE sets, Verlinden engine and interior, Chesapeake resin turret, Friul tracks, turned barrel, resin stowage, etc...
That's what makes this hobby so interesting. Every project is different, everyone builds differently and to varying levels, and every thinks that everyone else is nuts! :-)
Jeff