I think that everyone who is using the site actively, like Jonas describes, should sign up simply out of courtesy. Freddie has obviously spent many hours working on all this; and he, Mike, and Jonas have surely spent many hours uploading pics -- if any of the holdouts are using it regularly, the least they could do is post a thank you message. And besides, the collection tracker is really cool! Yes, it can take some time to upload your collection at first, but it's not like there is a time limit. Just think how satisfied you will be when you have finished, and you'll never finish unless you start.

I also think one of the coolest unrealized aspects of this site could be our ability to track Juan's rarest cards (1/1's, 1/5's, etc). Mike has done some of this within the checklist on his site, and it's very interesting. If we could get the guys above, especially adelith, to upload even just their 50-100 rarest cards, we would be a lot closer to knowing which of the ultra-rare items have found their way into the true collectors' hands and which are still in play.