Tell PG: The username field in the login uses auto capitalization on phones
When logging in on an iPhone or iPad, the username textbox auto capitalizes the entry. As the field is case-sensitive, I was wondering if you could try to disable this. I realize you don't spend much time offering support for mobile devices on HN, but this could prevent a lot of bad logins from occurring.
I'm not 100% if this would work, but you may be able to add an "autocapitalize" property to the field in the form. See: http://dotnetperls.com/iphone
Any web designer should be able to confirm if this could work.