As i don't want to give any private keys i wonder if it is true or people are trying to scam money from others.
Just forget about all those forks, they all are crap, and you are going to expose your private key for a few coins that are not even worth $50
Maybe you have 0.10 or less on your wallet, if you receive those forks, you are going to receive just 0.10 of that forked coin (who will probably be less than $5 in total)
All those forks are crap right now, they are no longer profitable anymore, and they are a totally waste of time, just avoid them like plague.