This is my point of view;
I havent seen what was posted, but am basing my opinion on what I have read here
If the scenario is like this;
The member has posted a replica watch on a fiorum like he describes, with no links to any of the related forums (RG RWI or here), nor to any of the dealers on the said boards, then no damage has been done. He is a member of this forum, and now that he know's that such action inflates the knowledge of the rep world, I am sure that he would take it unto himmself to not post such a thread again.
I say this because it is not as if people aren't aware of replica watches, you can find them using google. As long as there are no links to our community, or our collectors, I feel that some reactions may be a little over the top. The fact that we get new people join our forum is proof that we are not easily hidden.
Solution;
I believe (and this has been discussed at length before) that we should remove our name from Google, and all other advertising websites, we have to decide whether we are here as a small community for protection, or for protection at large to people who may just buy one replica, spread the word of the forum and then not return. This would be far more effective than talking of banning someone for such a minor thing. I forget the number of times I have read where people wear replica's into AD (shwoing them off or not) but to me this is far more serious, because this is presenting our hobby to people who have a stake, and an economic interest in this hobby.
HOWEVER;
If the scenario is like this;
The replica watch has been posted, with any links (express or implied) to our community and, or our collectors, then this is a problem for us. Not only does this raise the awareness of our community, but it also provides an access point from another public forum.
Solution;
If this is indeed the case, then I would hope that the member concerned would remove his posting, or at least edit it to remove any links, of any nature to this community and its collectors