@ingridp In this community I use the Discourse Staff Notes plugin to record info about members (either that I research when I welcome them or that I pick up from their posts) and then I use the data explorer to query the data and pull out specific terms as I need them.
Here is the query that I use:
WITH psr AS (
SELECT regexp_matches(plugin_store_rows.key, '[0-9]+') AS psr_key_value
, plugin_store_rows.plugin_name AS psr_plugin_name
, plugin_store_rows.value AS psr_value
users.id = CAST (array_to_string(psr.psr_key_value, '') AS int)
psr.psr_plugin_name LIKE 'staff_notes'
psr.psr_value LIKE '%enter_search_term_here%'
In another Discourse community I'm building out a staff directory as a wiki topic where people can record pertinent facts so that we can all use them to network. That post is here.