That is a really excellent idea! Like anyone could make a post going "What a great game that was! Wanna go out and celebrate?" and characters could tag in like, "Yeah those last fifteen minutes were brutal!" or "We'll beat you guys next time!"

Unless anyone else chimes in with a way to work out the actual playing of games, I think that's a great solution. Just keep everything rather vague, yeah? Thank you for chiming in! :D