This is a small tip to help you disable auto group joining for BuddyPress public groups. Yes, It will allow your users to post to public group forums without joining the group.
If you are using BuddyPress 1.2.9, you can put this line in bp-custom.php
define( 'BP_DISABLE_AUTO_GROUP_JOIN', true );
Isn't it easy and cool.
Oh yes, and if you don't want to do it manually, you can use my plugin Rescue me from groups.
Hope you will like it. Since I am busy working on a couple of plugins, I won't be able to publish any new plugin till Monday. So, Here I promise to provide one tip a day till then 🙂