Hi Rob B.! We are on a grandfathered free plan with Common Room. We use that for activity signals. We have workflows set up to encourage participation (mainly just reminding them what's available / what the value prop is) and then we message folks to be able to warn them when they are getting close to that 90 day period.
We're very explicit about it in TCC - upfront when you're in onboarding, we talk about it in the community, and you have warnings too.
