The "changeset comment" field is intended for exactly this kind of information - explain what you did and why to other human beings. It would have been appropriate to write "deleted buildings, I am in the process of redrawing them because they were done incorrectly". Instead, you wrote the hashtag-salad "#hotosm-project-16207;#DisasterResponse;#ESADisasterResponse;#DRCFloods;#DRC" which nobody outside a close circle of humanitarian mappers will be able to understand. Please put hashtags in the hashtags field, and a human-readable message in the changeset comment.