One account per original author (nickname = name as signed on the old site, group 'Original site'), display-name driver 'museum' keeps the brackets; --replace re-imports threads without real replies. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ