If the old 'dev' has mined some coins after the official launch date, so be it. Let us consider those legit and be done with it. Don't waste a lot of time to find every single address key he might have. As much as I too would like to close him out entirely, I don't see a chance to make sure it is 100%. My main worry is the massive premine (minus legit bounties given out). We need to document where it is and make sure it will not get exchanged to the new coin.

To add to the idea of the transaction log ..

Transactions are public on the blockchain anyway, so there is no additional private info to worry about.
The only link will be the email address (or forum PM) you use to send the log in.

Export transaction log as cvs, the only export format the wallet has.
Excel text import (comma separated, you can change number separators too), make sum of column 'amount' ... all is there in thousands of lines. Sort by addresses or amount and if something looks suspicious, look it up on the blockchain and/or ask the wallet owner for more information until you are satisfied.
Maybe even do check some entries that look ok, only to make sure.
Or you can to a cross check of the addresses with other logs.

I did it with my wallet last night and I see nothing I am worried about to share with bitcad4u.
Entries are
- some early Faucet entries (easy to check)
- mining with different pools (easy to check)
- mining on my own (there we have a lot of different addresses but the time diff should give a hint too about legit or not)
- 2 exchanges (easy to check)
- payments to myself to reorganize everything on 1 address (shows a 0 coins or small fees).

There was a little diff of 7 in the last decimal of the amount Excel counted, but I can live with that micro micro diff.


Do we still have a running public block explorer?


Before you trash them you can send them to me ... would multiply my amount LOL