The gold tag badge description reads
Earned at least 1000 total score for at least 200 answers in the
It is not clear if score means reputation or (up)votes.
Applies to bronze and silver badge as well.
Edit: New wording should explicitly mention votes, since the term "score" is only seldomly used on SO, while "votes" and "reputation" are well known. As has been pointed out in the comments, the term "score" even has been inconsistently used in the glossary for the definition of "reputation".
Proposed new wording:
Earned at least 1000 net votes for at least 200 answers in the
Or with clarification:
Earned at least 1000 net votes (upvotes minus downvotes) for at least 200 answers in the