Bold are not allowed

While doing my daily bloghopping habit, I stumbled upon tess page, I knew saw something here that caught my attention in an instant. Please take a peek…

no bold ? - blog.nestlepoell.net

Yes, as a freelance graphic designer who knows a bit of typography, id confidently say this image is saying that using Bold Font Style is not allowed where-ever she took that picture.or am i Missing something ?