I think hiding the yellow-box warning flag from the majority of forum users is a disadvantage (main reason for this thread). If we're using it to warn newbies then we should make everyone else aware of it too.
Agreed, especially when you have also removed the "Trade with extreme caution" tag which would have gone along with the yellow box and changed it to a tiny, inconspicuous hash, without any accompanying explanation. Given how poorly the trust system is understood and used by the majority of users, no one is going to notice the hash unless they have already read enough around the forum to know what it means
and they are actively looking for it.
It is also an issue that the banner is only displayed if the user is the OP of a thread. It is trivial to create an innocuous thread with one account (e.g. Is anyone selling x, Does anyone have a link to x?), and then post your fake gift cards, Ponzi, auto-buy links, whatever, with another. Without the banner or the "Trade with extreme caution" tag, and only the tiny hash symbol instead, scammers will be able to once again trick many guests and newbies before someone complains enough to place a red-box flag on them.
At least I established this:
