title: Is honeypot technique still effective?
body: <p>I read a lot about honeypots techniques to prevent spam but most of articles I've seen seem to be old.
  So I was wondering if nowadays, with all this smart bots, the fact of simply hiding a field with CSS can block them.
  Do the bots understand that a field is not shown and they should let it as it is ? And also, do they understand that a field is required or not ?</p>
  
  <p>In others words : <strong>how effective is the honeypot technique ?</strong></p>