Yes there is, because certain content is only available with certain choices - often made well before the content happens. Some decisions are clear, others aren't.
If we want to see everything (or even just more/less of a given character) you either need to try everything (highly time consuming, and wasteful since a lot of choices only seem to affect dialog) AND keep track of what you've tried in what saves, dive into the code, or use a guide.
Say I didn't like Jenny. A guide could tell me to spit on her twice to get rid of her early. Maybe she'll show up later in the story regardless, but a guide would still help me get fewer scenes with her. The guide doesn't have to know, or tell me, that she's coming back.
You've created a very good game so far, but I really don't understand your opposition to a guide.
