I just found it and posted it, it's not mine, they may not even be aware they've been HN'd. I've tweeted and mailed a link to them, perhaps they'll come play.

You said it's yours in the submission title.

well, not quite.

It's a "My First Email App" for kids. Not sure if the quotes were ever used, or if they were lost in the HN title process (I presume the former).

The "a" is there in the title, but it still reads confusingly without appropriate visual cues.

Sorry, as mgkimsal said I should have added some punctuation, "Maily, a 'my first email' app for kids" would have been better.

Any stats on how big the typical HN traffic spike is?

Depends on a lot of things, but here's a particularly good day of sustained traffic in the top 10. https://img.skitch.com/20121001-earf66yyjrpj7b11tjek89i9ii.j...

The source of that spike was 300+ concurrent uniques high turnover for a good part of the day.

I submitted a few "interesting" questions from StackOverflow last year (by interesting I mean they had interesting subjects, but weren't link-baity; my poor memory has forgotten what they were though!). IIRC, both of them got about 200-250 votes (on HN) and about 20-30 thousand visits. How do I know? I submitted using the share link StackOverflow gives you (it's something like stackoverflow.com/question/1000/2000, which means that user 2000 (me) has linked to question 1000), and about the time they reached 100-120 votes, SO awarded me a badge along the lines of "you shared a link that 10,000 unique IPs have visited".

So, based on my very limited experience: unique visits are about 100 times the number of votes on HN.

#1 on HN for almost a full day: ~21,000 visits and at peak 815 people with the site open at once.

Huh. Less than I thought, somehow.

Problem fixed!