There are a small subset of users who very infrequently post. I met one person a few years ago who had zero posts, positive trust and several days of online time -- it doesn't appear he was interested in posting here, and created an account in order to trade here.

I personally think it would have been more appropriate to post in the OP's sales thread that he completed a trade with the help of yogg, rather than create a new thread. I have no idea if the OP is an alt of yogg or not, but I don't really see him getting any additional reputation from this thread, so I would believe the chances are unlikely this to be true.