In your profile, there's a "hidden" link to a list of the links you've hidden. You can unhide them. (Note that afaics if you don't have any hidden links, the "

In your profile, there's a "hidden" link to a list of the links you've hidden. You can unhide them. (Note that afaics if you don't have any hidden links, the "hidden" link in your profile won't appear. The link will be among the various "comments", "submissions", etc links in your profile.)