We took a break from identifying audio observations to visit the forum. A few thoughts after reading your guidelines:
Do you want to advise people to write notes specifically about habitat: call coming from forest, bush, high up in tree, cattail marsh, etc.? As an identifier, knowing the observation was in a wetland might give clues.
Do you want to specifically advise against habitat shots that do not include the focal organism? (per this thread: https://forum.inaturalist.org/t/habitat-images-is-there-a-rule-somewhere/40379)
Do you want to explicitly encourage (or discourage) including any photos of the actual organism if available to be photographed? Unsure if the goal is audio-only.
You wrote: “b. There is an option to upload multiple recordings – don’t get carried away. Review and reorder recordings” Is there actually a way to reorder recordings in the iPhone app?
Enjoyed the guide. Best of luck on the CNC!