Well well.. about the fees, I think we all deserve something which will be implemented for years. I personally don't like this yearly changes and rumors.
Please LL make up your mind and stick to it.
If LL wants 15%, then make it 15% - but don't increase the fees every year. That's really a bad thing, and rumors and complaints never stop.
Back to the main topic:
I'd love to have:
-) bulk upload (photos)
-) possibilty to ban specific people
-) redeliveries for customers directly at the MP
-) more flagging options & reactions from LL