Sorry for my comment.... Here is my take, may not be good... Anyways I seriously do not see any concrete evidence here. First of all facebook is a 3rd party site and evidence from 3rd party sites should not considered as anything can be said (my opinion). 2nd there is only a guy in facebook saying that he scammed but there is no proof it. Again anything can be said but dose not mean it is true. Next point is Sharking... First Steamrep dose not promote sharking but will not deal with it either which is perfectly fine. Sharking is also completely not one party's fault the victim party is also at fault for not doing proper research. Anyway my opinion on this.