I host a music community and have had to suggest work around strategies on several occasions because there is no way to post a recurring event. This is particularly annoying to those who host weekly events in the same venue (a jam session or open mic are good examples). These people often stop posting their events on my site's calendar out of frustration. Musicians are pressed to do all of the things to perfect their performances and need ways to disseminate critical information effectively. I have requested this enhancement of Ning in the past, only to be told that it wasn't on their priority list. Well, it is on mine and every creator's who has a viable calendar of events.
One of our creators who moved his community to another network invited me to join. His calendar has the facility to handle recurring events (as does my Google calendar). Ning has to step it up!