Here's a better image if you feel like using it in the OP; NOTE: The thread I used as an example was random, not a scam. So don't take this as a warning, deal at your own caution.
http://imgur.com/TMke43WAnyway, maybe just moving the scam threads to a trashcan or changing the emoticon on the left to a red hand sign, would be cool.
But really it's all up to the staff members, it would be too much effort to change every single one. Maybe a set group of users to do it would be better.