At first I thought you were arguing against the point I made, but after reading this fully I totally agree. The worst offenders that are hell bent on naming variables as sentences are java developers. For some reason the boiler plate required by Java is no long enough for them. Lol. Joking aside, I think anywhere where the code is an API for external functions or anything like that. Having a very descriptive name and consistent convention is good, also if the variable is being carried over in a nested code or is being passed around or is being used 50 lines down somewhere then it is useful to name it in a way that is recognizable

Ultimately, I think even the choice of naming something and using a single letter communicates your intentions. If you make something a single letter then you're telling the reader that do not even worry about this variable it is just passing through, but if you need something your communicating your intentions of using this variable in the future it is more permanent in a sense