3. Why risk your v2 email/password?
Realistically, it isnt worth anything currently. Even if somebody has it, if you havent received your coins already it is very unlikely they will get it out of Mintpal. Make sure you change your password on others sites if you've used the same password.
this statement is false.
giving your password to someone allows them to claim all your coins still stuck on mintpal V1 and 2 not just your missing karma. it requires you to completely trust someone that you have never met. not only is this bad karma but it is bad and irresponsible crypto coin management.
this definitely should not be the recommended course of action.proof of ownership can be done by signed messages or email verification... i.e. sending an email via the email address which is registered to your mintpal account or signing a message against the karma address which you used to fund Mintpal from your Karma wallet.
handing over passwords and other identity information to some unverified person on the internet should only be done as a last resort when all other options are not possible. once your information gets on the internet it is virtually impossible to remove. and it really doesnt matter if you trust the person you are giving it to or not because once its out there it can be stolen, copied, misplaced and abused in any number of ways.
Since the start of the Mintpal v2 claim form if you try to change the claim withdrawal address it doesn't appear to update. That means they would need to both fix that bug and make the withdrawal to the new person instead of you. I believe providing the username (email) and password is the best bad option. If you can't prove v2 balances the next best option would be to ignore v2 balances and use v1 balances, however that isn't fair for those that bought on v2. I think it is more fair to give people a "less safe" option than forcing some people to miss out simply because people may decide not to participate in the "less safe" option. My balance is the same in v1 and v2.
The issue isn't proving ownership of your account, it is proving the current balance of your account. Using your proposed method, how will people prove the balance of coins including those bought on Mintpal? The balance can only be proved if taken directly from the source...even then it isn't really proof, just the best we can do.
FYI Scryptminer is currently working on the website.
Chargin.