If IC was In Combine, then OOC would be Out Of Combine = out of the game = could not be occuring on the forums, etc. If the C stands for Character, then you can have an Out Of Character discussion about the game without leaving it. Which makes FAR more sense.
Anyone saying IC = In Combine has just seen the acronym and has made up their own interpretation for it instead of actually asking someone who knows what they're talking about.
Also, IC and OOC are widely used in Sims/RP games everywhere, not just the Combine.
But I'm off topic, so please carry on.
____________"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."
Only fools and children dream of heroes.