They're not, they're just getting flooded out by other posts. There's been at least 20 in the last day, but only a tiny percentage (low single digits) ever make it to the front page.
Possibly due to Summertime, I am constantly checking http://showhnapp.herokuapp.com/ it shows every post that contains the words "Show HN". That's how I found this post!
I look forward to the MetaShow HN, a webpage that collects links to each Show HN posted, which includes a post about itself.
Interface with github/bitbucket to get the languages and licence info and auto tag.
Better question: 'ask' is its own page, why not 'show'?
Yea. That would be nice, I am missing it too.
You can use hn webapp http://hn.premii.com. There is an option to filter show and ask hn stories.
Summertime? I know I build more stuff in the winter.