I think that could work - my only hesitation with that approach is the up-to-1-hour gap in something happening, which feels a bit long in this context - and hitting the API more often doesn’t seem like a good use of resources.
Are there any logical places that we could hook into?
For instance I know Discourse has a Zapier integration - but it’s missing a “Topic updated” event that I could imagine using to build a DIY automation for this!