I want to unsubscribe from a post on Ubuntu's wiki: https://help.ubuntu.com/community/. I can't find how to do that (I found this: https://wiki.ubuntu.com/HelpOnSubscribing but is does not seem to apply).
Go to https://wiki.ubuntu.com/Home?action=userprefs&sub=notification, you will see a text box with pages subscribed:
In my case, I have only subscribed to
Home. Delete the relevant line(s) and save.