In order to help the LangCom make a decission with regards to the proposal of wiki deletion, I'd like to know how many complications you'd expect to face if the databases from aa.wikibooks and aa.wiktionary; and howiki as well. Please note that the wikis are locked for ~10 years now so I guess not so much data will be there. Thanks.
Deleting it just from the database can create inconsistencies. I wouldn't feel too comfortable just issuing a drop database in production. I would rather get mediawiki handle its deleting and all the related checks to be honest.
Does "I would rather get mediawiki handle its deleting and all the related checks to be honest." mean you would like to have a function in MediaWiki that can delete the wiki's database? Or just that the pages in the wiki should be deleted using the normal MediaWiki interface?
Maybe it's just me, but when it comes that a project is dead, absolutely dead, with no content and no chances of revival I feel deletion makes a lot of sense. I do not conceive having a site up and running to display just a main page and nothing else; and it is not that deletion would break horribly. As far as I know, the centralauth table for that wiki should be cleaned and the rest of them can be just DROP-ed, according to the Wikitech docs. If there are other background processes or data that needs to be updated as part of the deletion, please document them for the future. Thanks.