Unless theymos was experimenting with something I don't believe there's ever been a warning there other than in Investor-based games.
Or it is possible that Op was talking about the warning of some gambling thread where the thread creators are scammers and their flag has enough support which might be the reason for a red warning. But, I guess OP spends enough time on the forum to understand this is the warning for newbies and it disappears after a certain period.
I highly doubt that would be the case. OP must have been around for a considerable length of time to be able to decipher just what that is.
The closest to what would have been is as explained by Xal0lex on the Investor Based Games sub board of the gambling board.
It’s very easy to come by this confusion with the fact that, we’ve had a news field flagged up lately and upon seeing such update with the gambling board for the first time, one could easily note the change and assume it to be some new order to the board while forgetting to note where and how as explained.
You easily get to leave the sub board and give the attribute to the whole gambling board.
In any case, I was as well surprised by the development and I don’t see it to be a bad one just that, I’ve never had to encounter such warning in the gambling discussion or just gambling board as the investor based game sub board haven’t been a place I frequent.