My goal is to not need a walkthrough to play. And no LI will be locked behind a certain personality.
Interactions will be different though, depending on the compounding choice you had throughout the game. Down the line will be harder (but not impossible) to change how the MC personality is viewed from the outside.
The choice system is more of an outside looking in thing. Kinda like real life. Just because you're an insufferable asshole most of the time doesn't mean you can't CHOOSE to be nice once in a while, BUT... to change the world view of you being an insufferable asshole takes time. Something like that.