What is Bitcoin sign message and stake address ?

[chaosrift]

I am really confused with these terms , already searched on web got the primary informations. But don't know why it is important ?

Anyone there could explain it fully ?
- saw this message in a thread where all were pasting there Bitcoin address , please explain
-saw this message from a legendary member advising before buying account , (ask for signed message and stake address )tell me the full concern ?
-is it a precaution of hacking ?

I have no knowledge in this, any senior member please help.

[OmegaStarScream]

Yes, It's a precaution in case your account get hacked. If you post an address in that thread and someone hack your account, you could sign a message using that address so an admin recover it for you. Signing a message from an address will proof that you are the real owner of the address (having control over your private keys is necessary) so don't stake addresses from exchanges.

[chaosrift]

I could create signed message but where to give in Bitcoin talk,  what will be recover procedure ?

[OmegaStarScream]

1. Post your address here (again, you should have control of the private keys): https://bitcointalk.org/index.php?topic=996318.8000
2. Ask someone to quote it (this will protect you If someone hack your account and try to EDIT or delete the message you posted in the that thread).
3. If you get hacked, follow this procedure: https://bitcointalk.org/index.php?topic=497545.0