What happens after someone disagrees with an answer?
Disagreeing is actually just a signal to the person who asked the “help” KudoZ question that you (and maybe others) don’t feel the answer is correct, the asker is then free to take or not to take the suggestion. The only “mechanical” effect is that if the question is auto-graded, disagrees count against an answer for being chosen. Grading from qualified peers is the normal way to grade and close “glossary-building” KudoZ questions.