I appreciate you want to protect newcomers and I understand your suggestion, but isn't it a little excessive? Which are the real risks? I doubt someone could invest in a software/hardware hack and sell (discounted of course) to randomly people without knowing the possible return of the target. Too expensive.

Perhaps the right thing to highlight is to never use pre-written seed in the box (sadly happened) and to check the firmware validity before starting to use it (as the seller suggested).

Knowledge is the first barrier for security.

Then reuse encourages critical trust and lowers the e-waste production.