[quote="jingai"]Someone (not me

) could create an almost unsolvable puzzle,solve it themselves using their insider knowledge and give it 100%.
The puzzle would then be the most popular puzzle on the site!
Also multi griddlers don't get a look in as far as I can tell as they are scored on each section of the puzzle as far as I can tell.
The puzzle might get a 100% score after the first vote in the general lists, but to get into the Most Popular lists, a puzzle needs to have at least 12 votes. As for Multi's, you can only vote for them after you finished all parts.
As for the meaning of the votes, there is a link on each puzzle page
about how to vote.This it what it advises as a guide to voting:
100 - Perfect puzzle, either by design or solving.
75 - Very good puzzle, but not perfect.
50 - Average, one of those "nice" puzzles.
25 - Not horrible, but not a nice puzzle.
0 - Poor puzzle, either by design or solving.
So there's nothing wrong with giving a puzzle a 75% vote. It will mean the puzzle can't have a 100% popularity, but then, hardly anything in life is considered perfect by everyone.
I hope this gives the voting system a bit more sense to you!
Jelga