On: Ask HN: Who is working/has worked on porn sites?

[there]

because the encoded url is

    http://www.google.com/search?sourceid=chrome&ie=UTF-8&q=adult...

and the HN code that truncates long urls chopped it in the middle of &#38 so it becomes "&#3" which is telling your browser to print the ascii character 3, which it can't show properly, so it shows the character you see instead.