It would really be nice to exclude a label (or more then one) in a search. Perhaps use the shortcut !LBL1 to exclude since NOT could be recognized as a label, unless that becomes a "keyword" for the plugin. This would be a really nice feature to have. We use the label plugin to manage cross JIRA "project" projects and to help loosely manage our portfolio. We do assign more then one label to many large projects and it would be nice to find projects that do not have a specific label at times. We have to go to the database directly to create those reports.