The openHAB Team have restructured their openHAB Google Groups space, and there are now dedicated Categories for each Binding, use of Rules, Scripts, Transformations, General Setup (etc).
For the MiOS Binding, feel free to use either this forum, or the dedicated MiOS Binding Category in the openHAB Forum.
I will cross-post there also, so people know about the content that’s already here, and will monitor both spaces.