I think episode should make a sleep mode for users ( on the forum), like a moon emoji and show it to the name if the user turn on the sleep mode.
It should shows if the user is sleeping or inactive other way the others can think that you don’t what to answer them or avoiding them. That’s the best ways it could be useful:
Don’t notify/message someone while is in sleep mode or inactive
Wait for him/her to be active and know exactly when message
PM the person at the good time
In the top right side of the screen, after your photo add a button to be easier to turn on/off the mode.
In the following image is an idea of design it does’t really matter so much, just a suggest
Support if you agree!