Wow I need "100" merits just to be a full member
Absolutely not rigged for people with multi I guess
they would never send merit to each other
The merit system was designed to encourage quality interactions and contributions on the forum.
It doesn't count for much, except you plan on getting involved in bounties.
I wouldn't refer to full member rank as 'just', it accords you recognition in the forum as gettin 100 merits is not an easy feat.
As for merit abuse, that was addressed by theymos, except they are merit sources they do not get dropped smerits to give out regularly and have to earn merits to share them.