It's possible there's just something about that sign up there we don't understand (well, there definitely is—what's an "unc goat"?) but it seems pretty likely they meant "traitor" there instead of "trader." Or maybe it's a Florida fan making fun of Florida State fans? Nah. Let's just go with dumb Florida State fan.
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Dadgum, Rinaldi, Open Your Eyes
Not Sure If Incorrect Use Of Meme...Or Just Florida State Fan
Wood's Woods' Morals Have No Support Among Rowdy College Kids