From now on, you will need to have a my.opera account (It's free) in order to leave comments: I was receiving too much spam and had to disable anonymous comments. Sorry for the inconvenience.
En francais: A cause du niveau de spam eleve que je recois au travers de ce blog, j'ai du desactiver les commentaires anonymes. If vous faudra avoir un compte my.opera (gratuit) afin de pouvoir me laisser vos commentaires. Desole.