The Scooby Snack system appears to be gone.
Well, I guess it was irksome, in many regards. But it was nice to know, in advance of searching all posts, whose input was widely valued, and whose wasn't. However, if it's not gone for good, I have some ideas:
1). Limits: Another forum I frequent had a star system. You could get a maximum of 5 stars. It was an average of your votes, so it was a slow progression, and an even slower downgrade. 'Course that forum dumped it's award system as well, so maybe that's not such a great method either.
2). Logarithmic progression: First ten Scooby Snacks count as 1, next 100 count as 2, next 1000 count as 3 ... but you can still lose them at a 1 for 1 vote. It will keep people, like, me, for example -- polite, while the best posters are gradually rewarded.
3). Currency: You can give or take Scooby Snacks, but either one costs you one. The only people bankrolling the currency, that is they have a small supply to start with, is moderators. Because they have, pretty much, been chosen for the value of their input.