I'm mean it sounds like you're completely onboard with the idea, whether it be mutual exclusivity for traits or a hard number of picking 3 out of 8 traits. I just want there to be the option if author has a specific vision for a 'vanilla' playthrough of their world. Meanwhile the player can enter the editor and disable the trait limits if they want to do so.
I don't see what's wrong with asking for that. I'm not asking to password protect or lock the editor, so that the players are stuck with the trait limits. It's more of a person waving a sign saying, "Please only pick two." Or "Please don't pick Futanari and Femboy at the same time."