I rewrote query by Martin Sleziak into this:
https://data.stackexchange.com/math/query/891053/top-users-with-no-answer-scores?num=100
Hope it helps.
If still joining on users, you can explicitly view reputation:
https://data.stackexchange.com/math/query/891096/top-reputation-users-with-no-answer-score?num=100
It turns out that the top user without answer scores is Laila Podlesny, and her reputation is still under 10k.