> It's a terrible long term lubricant (because it's designed to evaporate, it actually concentrates gunk and grime).

I recently read that WD40 isn't actually a lubricant but a lubricant remover. So as you write you'd use it to remove gunk but then follow it up with an actual lubricant.

On the last two bottles of WD40 I came across (im Germany) I checked the back and it indeed said that it's not a lubricant but a lubricant remover.

(Disclaimer: can't read the article past the intro where it does call it a lubricant...)

Yes, it's more correctly labelled as a solvent. Part of their marketing secret is that their product is inherently "addictive" in a way - it can loosen up things quickly but also make them seize more quickly. Which gives users a sense that they constantly need to re-apply WD-40 when most of what you are doing is cleaning up the mess of the previous application.