Maybe it was my fault (or I didn't make myself clear enough), but you both got me all wrong...
My post's bottom line was: if someone advertises his/her cards here and remains a "guest", why not register FIRST, and THEN advertise one's cards/trades? Doesn't this make much more sense? Why is this site up anyway? My view of it is that we're a community of traders and, as such, only “members” should use it. Otherwise, there are plenty of other websites/forums where trades can be announced/made, right?
Like you said so well yourself: the more *_MEMBERS_* we have the better we trade, right? I, for one, have always put this site's URL in all the signatures I use in the several Star Wars forums I'm a member of. This is a much better way to advertise the site, I guess. The forum is a very recent feature here. What do you think "guests" did before that?
P.S. the amount of references is debatable, btw. I have more than 4 successfully completed trades through this site, but since at least other 4 were made with the same members that situation is not reflected in the final amount. Something I alerted the Admins before, in the past.
P.P.S. kilalya, I also use the same rule as you, when someone has no references to show. Members included.