[C.Nails]

this post to inform you that your share has been moved to CBC second life forum

This happens

1) when you have shared your way to the next user group.
or
2) when the share(s) has been in the sandbox for a month or two . It will then be moved even though the contributor didn't get to the next user group. 

If you haven't already, you might want to read more about how the sandbox works, by reading the guide

PM has been sent you with the information of which share has been moved.

update  - 
the last of your shares from the sandbox is now in CBC second life forum. PM has been sent to inform you.