File Reference and Deletion, will it really be deleted?

[vinothkannans (Vinoth Kannan)]

Do unlinked files get auto-deleted?

Say I drop an image in a post and some time later I decide to remove it by editing the post and erasing the markdown image link. Does the file get deleted from the server after some time? If not, is there any way I can do that manually as a regular user?

Also there are many other related topics.