My suggestion is to have a "silver bullet", that will mark that the post must be upvoted, not matter the score.
Let me explain:
Imagine that there is a project with 1.152 words
It gets - 0 points
Another translator is working on a project with 10.000 words, and it's easy to split it in parts with 2.000 words
It gets - 14 points
The first translation, although with the lower score...
Is one more finished project. It's translated well and it deserves the upvote, no matter the score.
I am glad you brought it up, that's exactly why we made a second proposal where the volume does not affect the score but it's used as a coefficient to change the voting weight. I am just not sure if it could be implemented. There are also manual votes that can be requested in special cases.