There is no shutting down.
I'm suggesting an alternative that should be the same but has some improvements.
Those that have created GIS and keep it going will decide if they want to do it. This is just an offer, With a mainstream system there are many that can support it. However most ongoing changes to text could be made by the current tribe of people in charge because it is easy for those allowed access. I do not want to control the site but just want to make it easier for you folks to do what you do.
I like you guys and what you do.