I think that most people have a preamble that includes packages, and comments that make sense for the person who is writing the document.
but maybe the comment is too personal to be understood by others e.g. written in non-English language, using non-standard abbreviations, or the focus is on the package cooperation with other used packages, ... - or plain wrong.
Does it makes sense to define a standard
⟨comment⟩ string to be used with each
⟨package⟩? So that people could(should?) write that comment in their documents. -it could also be used as an automatic hover text here on TeX.sx.
It could be implemented by writing the string in the package documentation (with special formatting for easy reference), and encourage people to copy and paste into their source.