There are currently several extended features in the works for logged in members v.s guest vistors. These require site-wide permissions to be set on a custom page-by-page basis. Once implemented beyond initial testing, joining will be made available AQAP.
Some features are resource-heavy, and we need still need to iron out some bugs. Feel free to contact by email if you would like to receive an invitation when ready. As well, our contact and other important pages need to be in place first. Big thanks to those who already inquired.