I guess the OP has found the address which have 40 BTC and have the last transaction from 2011 and which tells us that the address was not used again since 2k11 and the owner must be from early adopters and lost hi faith in Bitcoins in very early stage and he lost his password/key/wallet etc.
And this user has found the address and wants to transfer the bitcoins to his address without they private key.
OR if he found an address with priv key then he is going to rich :p
That's what I thought too while reading his post and replies. But now I think he's not so stupid, he's just lying like a rug IMO. If he just seeks attention that's okay, but if he's going to post malicious links afterwards he should be banned for doing that.
And I don't believe a word from this:
Good Morning,
in the forum post are a lot of private keys (i think so 10000 pieces).
the forum post is from January 2017, i have taken me one pk from the middle of the list.
And it worked,
i have now the money, and i donate 75% of this.
Thank you for your replies.
Best Regards!
EDIT: I donate 50% , i take me 25% and i will give the owner 25% back!