Maybe the yellow one doesn't show to us but it shows on non registered users or if you are not login but the red one will always show with or without login.
Yeah, I meant the yellow one, not the red ones. I have edited the post accordingly, and It has been clarified. Thanks.
Are you sure the warning doesn’t show up? It won’t show up for you anywhere (assuming you have been logged in for long enough). You need to check while you are not logged in.
I wasn't logged out in one of the tabs while viewing the goods board, so I wasn't seeing the warning banner on some scammer's post and thought it was some glitch.