I'm not going to comment about the idea itself, just about the icon
To me the icon showing the flat palm looks like a stop symbol, as if I am doing something wrong when trying to help a new user by posting a comment or answer.
But you don't want to stop me from helping, do you? I think you rather want me to pay attention, so I suggest to replace this sign by something that says "Attention", for example an exclamation mark:
Or an "information" icon (as suggested by @SonictheInclusiveHedgehog):