i think so as its on the site but i think only messaging to each other like on live when u block some they cant send u any more message and u cant do the same if they block u too.
This one person was being very impatient, so after I got done modding his save for him, I blocked him. Also no one who is important to the site, just someone who joined around October and has managed to make 3 posts.
Den just message him/her and say if u dont wait u can find some 1 else to do yr save as this is a free service, thats what i do in all my serivce if they can find some 1 eles den good 4 them so i can now deal with peps who can wait and not b an impatient person.