The folks I have shown Confluence to simply love it.
So as is so great, I have to ask (as with JIRA) for support for external group support. (that is LDAP in our case)
This would make Confluence a lot more usable (at least for us).

Within JIRA, I am already manually maintaining ~10 groups. I really don't want to do this again with confluence.

If there is a constraint in resources, can we contribute code?