If you look at the numbers, it is really hard to get that high up without breaking the rules.
There are what...like 800 games here? If you rated and commented on every single one once, that is only 2,400 AP. Add an average of 600 posts, that is still only 3,000 AP. Add 15 Merits, brings it up to 3,375 AP.
The leader right now has almost 300 games rated, yet nearly 3,000 comments.
Great. Makes people like me who do honest scoring, posting and commenting feel like it is worthless to even try and get up there in ranks.