Board Thread:Support Requests - Getting Technical/@comment-5907266-20160128170738/@comment-24473195-20160130181818

Fandyllic wrote: It's odd that removed threads can still be seen by link. Not really, only  staff can fully delete anything from a wiki by deleting the revision and cleaning it from the hdd. Think of it as someone blanking a page (e.g. talk page), the history will remain.

Delete has a different meaning in mediawiki, it is more "like hide from general view",  otherwise it would be impossible to undelete anything.