The password is irrelevant, only the seed words matter. When you create a wallet, you are supposed to write down a series of words in a piece of paper, you can recover your wallet with that.
It's not irrelevant, wallet file + password allow you to access your coins, so it's a really bad idea to be careless about it. As for seeds, not all wallets have them, Bitcoin Core doesn't use them and will not use them in close future. If we are talking about wallet files from early days, there's almost no chance that those wallets have seeds, so finding or cracking password is the only way to access the coins again.
Which one wallet he use for saving bitcoin balance, how available to recovery their account without know which one exchange or wallet kind for saving his bitcoin assets, maybe he made something joke for interested many people in bitcointalk tread become famous with his topic, I think he has many bitcoin assets in his wallet will know by many people in telegram channel to as for people how to unlock his wallet.