Do any of you know if that booth actually came to be?
No, but does it matter in the context you got quoted on it? You played the concerned one, who told that coins which are trying to present them self at conferences are a bad think (you called it a "red flag"), but then you got caught in an old posting where you said something different, you said you are looking forward for that litecoin presentation back there ... twisted mind, and that's why this has been pointed out, not because there was or was not an litecoin booth!
(yes it could be that we get your intention wrong and you just said you were looking forward for the litecoin booth, because you want to see how it is a red flag ...)