It's not simply a reading comprehension thing with bullet points. If your questions require research on my end having them already structured in bullets does a few things to help with that process.
The asker's bullet structure gives something to mimic. You can even put your answers directly below the question, so the asker can be reminded of their own questions.
The bullets also help skimming, if I need to see which item id is needed next it's easier to do so without losing my place.
Bullet grammar structure also allows for much terser sentences. If I need to reread your question it's easier if I don't have to ignore a bunch of words that don't substantively alter the meaning.
Do I need any of these? No. Could I put the questions into bullets myself for the reply? Sure. But it's easier to spend more time and effort on answering your questions if you save me a few steps.
When combined with other data on the same line and written without the slash, it usually won't mean not applicable.
If it's in some sort of published professional context, I wouldn't read it as not applicable without the slash.
North America is a reasonable guess when specifying region could be context appropriate. Like you said with video game team names, but also company/org names, species common names, or treaties.