Apache Druid

Hi,
I was looking into broadcast rules feature in druid ?
Its been there for quite some time, has anyone used in production ? ( i am aware documentation stating its not prod ready, just want to hear anyone's experience ).

I believe they're widely used.  Out of curiosity, where do docs say it's not prod-ready?

<https://druid.apache.org/docs/latest/operations/rule-configuration#broadcast-rules:~:text=Apply%20broadcast%20rules%20in%20a%20test%20environment%2C%20not%20in%20production|https://druid.apache.org/docs/latest/operations/rule-configuration#broadcast-rules:~:text=Apply%20broadcas[…]0environment%2C%20not%20in%20production>

Oh, right, sorry!  I was thinking of load and drop rules, not 100% sure on broadcast rules.