When toi commentaire on a profil wall, the fan whose profil it is always gets a message in his ou her mises à jour about it, but obviously they sometimes don't reply. When toi commentaire on a club wall, only people who choose to look at the mur section see it (I think the same is true for personal clubs).
Yep. I sometimes forget to check my mur and see a commentaire only after few days. If toi need to reach someone, toi can try écriture on mur and also pm them
