The groups facility on Facebook is very buggy
a) There is sometimes such a delay in uploading pictures or posts that I accidentally upload it more than once.
b) Posts that I delete keep reappearing, posts that I haven't deleted keep disappearing
c) Events that I create using groups disappear
d) Friends that I add disappear from the list but when I try add them again it says "this friend has already been added"
Added to that groups should NOT be allowed to automatically add people, it should only send invites (like events do). It should also not allow access to the members information to other members of the group who are not necessarily friends. These are old problems, I encountered complaints about the exact same things posted in 2010. Why has nothing been done to fix this potentially useful function of facebook?