The point is that it can be fun. Neither is the right/wrong way to do it. Its just good to understand where the person you're talking to is coming from. There has been a trend in comics lately to prioritize telling the best story possible over worrying about the minutia of continuity. Given that trend, its understandable for people to talk about things conceptually, "What would make for the best possible Batwoman/Nightwing/Tim Drake story?"