just a quick update. Using the @-mention-system, you can now notify all admins about your post directly by using "admins"-alias. Just type @admin in your post and it should show up like this:
Once selected, it expands into the full list of current group members of the admin group, who'll receive a notification about your post after:
BTW, You can also use the alias in "private messages". Please use it, if you have any permission request or need any help.