Fenrir.Xeonerable said:
I don't think 1-100 would be any better. It seems like just putting more glaze on the current 1-10. People won't care for the numbers in-between.
The 0-100 would be calculated not scored by the user. Score = liked/total*100 (the percentage of people that liked it).
Edit:
As for people caught abusing the system with multiple accounts. They will be banned from voting and their scores nullified.