[clydethefrog]

I tried to post this article a couple hours ago and I've got a message it was submitted​ before, without a link to the submitted article. Search resulted in nothing. Are there special measures to blocking articles and making them not even searchable? In the past I could still find flagged articles via search.

[dang]

Probably those articles were [dead] in addition to being [flagged] and you don't have 'showdead' (described at https://news.ycombinator.com/newsfaq.html) set to 'yes' in your profile.