Authorization "Intellectual Rights"

Good evening

I would never understand this:

Normally Fotolia accepts only the images having an authorization on Intellectual property laws… OK

But then WHY contributors have images in great quantity, representative of the French Castles (Fontainebleau, Versailles, Be worth-the-Viconte etc…) and which does not certainly have the authorizations necessary

On another Microstock, they accept the leading images and I have hundreds of these images and sell well.

Jacky