Thank you, you are absolutely right, but try to go there (you will not be logged in) :
https://wiki.couderc.eu/doku.php?id=start&do=index
You see that you can open tol and see the titles of the "tol" pages : customers, developers, and even the list of developers...
I do not understand that, as you have "aucune"(=no) access right. Sure you cannot go inside the pages, you are right on that, but I you like - please pardon me ! - that you be not allowed to see the titles of the pages...