I frequently flesh out answers from new users; adding relevant dictionary definitions, links and usage examples. Almost every time I do that, the answer immediately gets a -1 score.
Some new users might think that it's a downvote from me, because they can see "edited by NVZ".
I understand only that it's the system punishing the VLQ answer, but I don't understand why it's done after it's improved? How can I prevent this? I feel discouraged from improving answers somehow.