It is a reciprocal counterpart to five golden rules of troubleshooting (Volume 1, page 590). Whereas the former are for artefact submitters, internal and external customers of memory dump analysts and complex trace readers, I'm RARE are rules for writing analysis reports with easy to remember mnemonic:
I'm RARE - Iridium Rules of Analysis Report Excellence
Note about Iridium metal from Wikipedia: "It is one of the rarest elements in the Earth's crust, with annual production and consumption of only three tonnes."
Here is the number 5 of them (subject to change):
Use a template.
Structure a report according to audience technical level and organizational processes.
Use checklists not only for commands and tools ...