Perhaps taking the perspective of being a curator would help. I feel like we don’t do this enough in community building.
As community builders we see things many people don’t. We learn about our people. Their wins and pains. We know what comes up time and time again. We know who to tag in. We understand what gets shared around.
It almost becomes our job to support all of this ecosystem and bring it in an organised and systemised way. I think Discourse can be great for this.
We can cross post repeat questions, summarise stuff, ask/tag/quote people.
“But it doesn’t scale” 
It can do, the people scale it, if it’s done well and in a way that is actually helpful.