I’m relying on the users to exactly follow the plain-language terms of the SDFL. Some of my models are for weight-bearing things that if they failed through misuse or misapplication could cause injury. They are intended to be used exclusively by the person who downloaded them and read the instructions. Under no circumstances would be it be acceptable, for example, for someone to send one of my bookshelf bracket prints to their granddaughter.
Because the plain-language meaning of the SDFL is so clear I don’t need to have extra special red-bolded language indicating that the model is for the exclusive use of the person who downloaded and printed it. The SDFL already has this restriction. I’m relying on it to be followed exactly.

@MakerWorld maybe you’d like to chime in? Is the intent of the license to go as far as to even say that a grandparent can’t print something for their grandchild?
@MakerWorld tread carefully. I’m not giving you legal advice, I’m specifically warning you not to interfere in my licensing agreements which you are not a party to. They are between me and my users. It is not up to you to modify them through your interpretation of the intent.
Not only is the advice given by Support above factually incorrect in all cases (the SDFL does not distinguish between commercial and non-commercial distribution) in my specific case that advice is explicitly contrary to my desires (and the plain language of the license). Under no circumstances do I want my models distributed to friends and family without securing permission (from me, not you) first.