I joined as well. Put me in as an officer if needed.
One comment - I looked at the list of groups, and I didn't see anywhere in the Group Recruiting page that indicates that a group is on probation. In fact, on the summary page, of the quarries group it lists Number of Members as '7', (now '8'), which is the membership but not the number of officers. Can another line be added to the summary entry with number of officers and a flag to indicate that either it is already short of officers (bad place to be), or indicate that one of the officers wants to quit the group once a replacement has been found? Is that note notifying members that an officer has quit sent to non-officers of the group and invites them to join as officers?