A forum topic/area devoted to EYB indexing sounds like it could be helpful. What specifically would you want it to cover? What do you mean by "new indexing terms" -- is it ingredients? If so, I'm not sure it would be practical or useful for us to post all the new ingredients we add to the Ingredients database. In May 2019 alone, we've created about 350 new ingredients (including name and spelling variations to existing ingredients), and there are almost 45,000 Ingredient entries in total! And keep in mind that we don't add new ingredients unless and until they're required for a recipe.
Other members who index, feel free to weigh in about what you'd like to see in an Indexing-related Forum topic, and remember that you can always email me directly at [email protected] if you have specific questions while indexing.