This is surely a dumb question, but I'm curious:
I know that the bubbles in the app get grey when the forum is inactive at the moment, otherwise they are blue. How does this work?
Yesterday, I saw that even the Off Topic forum bubble was grey, although it was active. On the other side, the "Siri" bubble is blue, but no one posted there for about a week, I think.
That's what I mean. Can anyone explain this to me?