I remember seeing a group of people dressed (and named after) the Ghostbusters and actually looked the part, shortly before the First Anniversary.
Definitely among the Top Ten best STO theme character's I've seen. (The First was someone who made a Navi that was too convincing, long before Caitians were around).
Maybe they aren't seen around anymore since then cos they teamed up for a ground STF, forgot the rules and Crossed the streams, and every molecule in their bodies exploded at the speed of light? Or maybe Egon toon forgot to give them the heads-up this time?