How to do when 50 pictures are already published ?
Is it necessary to remove some to be able to put news of them ?
Is it possible to exchange against points of new spaces of publication ?

Yes, micini, after you have posted 50 photos you must delete some of them in order to post new ones. You should choose the photos with the least pats as these pats will be lost when you delete the old photos for the new photos.

I´m not sure what you mean by exchanging points. If you mean can you buy more space for photos with points, the answer is no. If you think this is a good idea, you could write directly to Admin with your suggestion or any mod would be pleased to contact Admin on your behalf.

I do think that buying more photo space with points is a great idea! I don´t care to use my points for the profile templates, so it would be nice to have another reason to keep saving them.

And I´ve also seen some users who already have 50 pictures up adding more in their cats´ diary entries.

There can be a different new photo added to each diary entry - not a problem if you have 100 entries with 100 different photos. The number of pats a photo receives is important to some users, and the photos in the diary entries don´t receive pats. This might be a consideration for some in putting new photos on the profiles instead.

What is not allowed is creating a second profile for the cat in order to load more photos. After a warning to the user, those second profiles are deleted.