oops I'm sorry I guess I misunderstood the initial question.
I thought it referred to beginners with bitcoin. Maybe it is beginners with the forum
The biggest issue with the forum is I can't find simple answers to simple questions without being contradictory.
Example:
#1) I bought bitcoin on coinbase. Where are they?
answer: they don't actually exist, they are just numbers.
#2) how do I keep my bitcoin safe?
answer: put "them" in a wallet (contradicts #1 answer)
#3) Am I supposed to keep my private key secret?
answer: usually yes
Why then is there a post on this website asking newbies to sign their posts with their private key?
Is it a scam post to scam newbies?
If you are referring
to the pinned message here, no it is not a scam. More of a poor choice of words.
AFAIK it means: Using your wallet software - that only YOU have the private keys to - have the wallet generate a signed BTC address. Then post that newly created BTC address - NOT your private keys!
That way is something happens with access to your account it allows admins to recover your control of it by having you send them another signed message FROM THE SAME WALLET to prove who you are.