I'd like to see a ffxi type of loot window where you can see everyone's roll or whether or not they've passed. I've sat in primals for a few minutes waiting for people to roll because they are hoping the others will leave.

I don't think we need a safety measure to avoid loot dropping to the ground. It's easy enough to not leave an instance until the item is distributed. People need to stop thinking their stupidity needs to be alleviated by an outside source instead of changing the way they themselves do things.