Hi there Stephen and Michelle! Thanks for getting in touch. 🙂
That’s an interesting idea. For the time being, the only restriction Community Events can impose is whether submissions must be from registered users. I can definitely see how setting specific posting limits on user permissions would be a benefit as well, but that’s a feature that isn’t currently supported.
If that’s something you’d us to consider, I’d suggest posting it to our UserVoice forum, which is where we take new feature requests. We’d love to see it posted. 🙂
Sorry I don’t have a concrete solution for you here, but does this help answer your question? Please let me know.
Cheers!
Geoff