Bonjour, Cerjak.
That is possible, but how would he wear the sword when he wasn't fighting, but going for a leisurely stroll ? The sharp quillons would surely stab him when he walked, rip his clothing, as well as other people that he passed by on the narrow streets. Unless they were covered with some type of removable caps...
It's a tough one. I figure we'd see other period swords with sharpened quillons. Imho they were as dangerous for other people, as they were for the owner, if he were to use that sword for what it was meant to do.
