Definitely :-) but I try to apply this daily when building www.weld.io (web/app building tool for non-techies), which is now a quite complex app with a big front-end component and a sprawling microservice architecture.

One way how I apply the “Rule of 10" is with inline micro functions. E.g. just chaining a few Lodash statements together quickly becomes difficult to read, so I try to wrap this in an inline function, often with a longish name (e.g. removeDuplicatesAndMakeAllKeysCamelcased()).