Honestly, I haven't a clue as to how the law applies. Like I said, they rent out the pans, they don't stipulate you cannot use them for other than family, perhaps the same law applies, I really don't know. I guess I would also take them off my site if I were you. It is something most of us don't get into the discussions about, because, sometimes it can turn a non-issue into an issue.
I tend to do cakes for cost, most especially for these character type cakes, so it isn't a problem for me.
Since in most communities it is illegal to advertise if you are not licensed, and by most I mean the ones I am aware of in this country, well then this isn't an issue.
But I can tell you that I have rented these pans for years from various companies and bakeries and such and not once did I see any stipulations about the illegality of making these cakes for sale. They generally don't have the whole insert in them, perhaps too, they are covered by the rental fee, although at $2 a pop, I find that a bit hard to believe.
But I think that we are probably bettter off not making this a forum issue, haha!
Personally I find the whole issue a bit silly and to avoid any problems with posting pictures, as long as they are for family members or for cost, post them, otherwise don't.
Hugs Squirrelly Cakes