I updated my signature today and now on my yobit account under
Amount BTC I am getting zero. Anyone else having this issue?

My above issue has been resolved yesterday. Today it's working fine after the signature update. Update your signatures without any fear. This is a valid scheme, not a Ponzi.
Enjoy the Christmas.
I have just changed the signature to a new one and if the bot is functioning normally then I will do it as usual, and I think with you that this signature does not really matter if it does not break the rules or promote the ponzi scheme, I have just seen a lot thread discusses the investox yobit signature.