Well, I can see why I never nibbled for Lymia. Why would Daklore want to join someone else's military when he has his own force? >P But as for group gatherings, usually mortal held ones had no real reward, and were thrown simply as celebration of something. I can remember two that were mortal ran, one was by Persephone - which was a beach party, and another by me, which was to celebrate Persephone and Cyrene reaching fourth tier *shifty eyes* Let me tell you, that one was damned spammy... and hard to organize on the fly and not let those two know.
