One of our local community member forgot his password as he recently changed his password and also he didn't remember email. Now what is the method to recover account?
In Bitcointalk we use btc wallet sign for recovery but this is altcointalk so I think Ethereum wallet sign will also work?
Well, don't be naive bud, that we use bitcoin signed messages to recover lost or hacked account on bitcointalk does not necessarily mean that as here is titled as altcoinstalks, that altcoin is used to recover lost account.
Better idea is just to pm the admin, he or she seems to be a very good person always ready to assist users with anything, if a friend lost his or her account here due to forgotten password or email address, the contact the forum admin on your friend behalf and give the details of the account and the owner, I believe the admin help restore the account back to the original owner.