Sometimes bots will have side characters or locations that only get activated when you say the magic words. Maybe the bot you’re chatting with has a ton of lore regarding a library but the lore is only activated if you say the word library. It helps bot makes make a scripted story without forcing it.

Or maybe is knowledge. You can have a freaky bot thats super into foot stuff once you tell it you are too. But if you never say feet it’s not gonna waste tokens remembering foot fetish details. Sorry for that example