Nothing, as the *hypothetical* system is based on board participation, not collection-size or loyalty to the brand.
You're right, it may seem a bit unfair that someone collecting for 6 months could theoretically get a choice tip on a hot new figure, over someone who's been doing this for 10 years. But that hypothetical person/people should realise what the purpose of community is, and that they're welcome to the same information, they just have to participate (and participate means exactly that. You don't have to provide insider info on who MP30 is to count. It's introducing yourself, and participating).
The flipside to the loyalty to the brand thing is that if you've got a hot tip on a highly desirable figure, do you want it to go to others who participate actively to make the board what it is, and possibly provide reciprocal tips for other items that could aid you, or some random guy who just types in the address once a year to get the new MP, and if he knows that someone's reserved one, he can say that it was him and they got the name wrong and take it (happened to me once with a Star Wars item).
Exact rank is kind of a moot point for this stage of a very hypothetical idea. But personally, I'd be fine with being excluded, because all it would mean is that I need to contribute more of myself to discussions, you know.
After all, my chances to get the item would be the same as they've always been. I just wouldn't get that additional heads-up that increases my chances of getting it. People would still see that the toy is out, just not the specifics, and probably not for more than a week or two.
If it's just me, my odds of successfully finding that elusive desirable item is *1*. With additional, specific sightings info that I get from the collective knowledge and experiences of the board, my odds increase to *1.10*, maybe. I still have to be on here at the right time to see the post for my area, if it's something that's snapped up so quickly. So it's very situational. Your benefit would be a matter of hours for a sighting, not days, really.
*All that is just IMO, and from what I think the general groove of the conversation has been. I could be completely wrong, and could be projecting my own thoughts on it a bit much.
** There are counterpoints to everything I've said that are just as valid. My key words are 'community' and 'participation'.