What Saint-loup is doing is completely different. He posts a few words just to have a reserved post and edits it to make the post longer after days. That's probably done to spread the posts throughout the week and not be accused of burst-posting.
This is completely not making any sense at all. I mean what Saint-loup is doing. If a post is edited for typo correction, that is different, but he is editing the post at the late hours to make the posts count for its signature campaign. This kind of posting should be frawn upon not just by the campaign manager but also by the forum moderators, even if not frown upon by the campaign manager. It would be good if a moderator can give him warning and if he continues, temporary ban would be appropriate.