Community Wishlist Survey 2022/Search/Enable negation for tag filters/Proposal

• Problem: When view feeds such as Special:Contributions or Special:RecentChanges we can currently filter by tags, but not by the negation of tags.
• Proposed solution: Allow the negation operator ! in the tags filter (e.g. !mw-rollback), to filter out items tagged with said tag.
• Who would benefit: Editors
• More comments:
• Phabricator tickets: phab:T119072, phab:T174349
• Proposer: — xaosflux ^Talk 21:57, 10 January 2022 (UTC)