Is there really a need to delete campaigns? Do they take up significant storage resources on player's account or is that really just the art assets they have uploaded independently? If the space is negligible, and it should be if we are only talking about data in a database and not media assets, maybe an archive feature or something would be better. I completely understand people, particularly prolific GMs, not wanting their main interface cluttered with old campaigns. Now with the transmogrifier it would be great to just hide the little played, abandoned or completed campaigns for migrating over materials that worked and learning from past successes and failures. An improved campaign management interface would facilitate better backup practices as well. I know I would like to keep snapshots of campaigns, essentially, in case I need to back track, do some major edit mistake, or want to reuse a campaign from a certain point. Being able to organize the campaigns in some fashion would be a boon to that type of use.