**Unilaterally reopening a question to answer it and then unilaterally closing it again is not an appropriate use of one's [unilateral closing and reopening privileges](https://meta.stackexchange.com/questions/230865/increase-close-vote-weight-for-gold-tag-badge-holders).**

The privilege is not meant to give one a free pass to answer questions that should stay closed. This applies to both moderators and gold tag badge holders. A question should stay closed if it’s a duplicate, or stay open if it's not.

In this case, the question *is* a duplicate and already has an answer in the duplicate target, so it was inappropriate and unnecessary to reopen it, answer it, and then re-close it.