Here is what Kella Crider, the Administrator of the FB site said: “Hello folks. I know some are wondering why the group went private. We were having issues with an unruly (now former) member. It will change at the end of the waiting period established by Facebook. Sorry for any inconvenience. This is why we all need to come together instead of tearing one another down. If we get too many reports, we could get “zucked” meaning Facebook automatically disables the group for a number of days. (The term zucked comes from the name of the founder of Facebook, Mark Zuckerberg, where groups that are breaking terms and standards are disabled or deleted.) Thanks for your patience everyone! We are working hard to keep our group, our Karting family, a fun place!”
Hope this helps.
Keep on kartin'. llb