I serve as a GM for my daughters' DnD campaign. However, due to me working nights, and their school activities, we haven't had a chance to play for awhile.
Over morning coffee, I was thinking about how Hubzilla could be used to host assets for a Play-By-Post RPG campaign. That way we could continue our game until a time that we could play in the more conventional way. I think setting up a restricted channel configured as a forum would work well. Character sheets, portraits, and maps could be uploaded to the files section. A wiki could hold group loot, plot, and world info that they have uncovered.
The only thing missing would be some kind of dice rolling mechanism. I was thinking about how this would work best as an addon. Perhaps as a button like "Other networks and post services". You could choose the number and type of dice to roll. It shouldn't show the dice roll in the preview. That would keep people from cheating.
Maybe have an option to quickly type it in a tag as well. Like [roll 2d6]