DO NOT send your query for more information only to firstname.lastname@example.org. That address (almost) never reaches the submitter. (The correct address is email@example.com – or you can CC the submitter directly.)
DO NOT close a bug just because your query “can you still reproduce it” has not been promptly answered.
DO NOT close a bug if you do not have the maintainer’s permission to do so. You may, if you wish, state in the bug logs that you think the bug should be closed.
This ends today’s public service announcement. Thank you for your attention.