Thread:Jason67889/@comment-37033831-20190918011144/@comment-39707429-20190918120820

Fan26: He means: By going to Special:UserActivity it shows all the wikis you've contributed to, and is asking how to remove it.

Jason67889: Unfortunately, you can't remove wikis from there. If you don't edit on that wiki, it'll go to the far back, but not disappear. The only way it gets removed, is if the wiki gets closed down (see this blog on when they get closed down)

Cheers!