>So provide a field labelled "Age" but named "email", and simply check it contains digits. If it's got an email address in it, it's a bot. Or a blind user who

>So provide a field labelled "Age" but named "email", and simply check it contains digits. If it's got an email address in it, it's a bot. Or a blind user who might actually rely on both labels and names. That's a bit like what arxiv does, they have hidden links that ban your ip when you crawl, but the links aren't hidden for AT users. I got myself banned that way once.