There's enough there to keep all the developers busy for a while. Maybe I can join in eventually.
Verification should include things method such as encryption keys (digital signature) and possibly Bitcoin accounts too.
A priority should be making the site friendlier for non-geeks, e.g. image upload integration. The next million users are vital to success and they can't all be geeks.
Right on. If you have the ability to make some of these changes yourself and submit pull requests, that would be awesome!
I need to brush up my skills. Will look into it
If you are actually planning on trying it, you could start small - like adding a "Member since [date]" on the profile page.