Perfect timing.
Also I will give an example of when you would need polls to work with the permissions system. For example I have several users:
Agents
Premium Agents
Franchisees
Master Franchisees
and my internal staff of my company
As these people have very different needs I would poll people on very different issues.
For example I may ask my staff:
Do you like the new Kshop module but I wouldn't want to ask my agents this question as they don't have access to this area but I might want to ask my agents if they are happy with their commission structure.