@Emmacox @andy_the_frazzled Weekly is what I'm thinking. Because, yeah, it seems like a lot of work and I sleep too much to just hand out hours of my time... Weekly might be too much even.
I think coming up with the prompts / questions can be more time consuming than most would expect. Especially if you're going to come up with share-worthy graphics.
But there's also needing to make sure you read all of the responses, comment on them, encourage participants, reshare things... If you're getting one response every few hours, that's not a big deal. But if you get bursts of dozens coming in all at once, it seems it could be overwhelming.