title: Why prevent pasting of passwords?
body: <p>I've been to more than a few sites now where if you paste the password they will not log you in.  However if you type the exact same password, it's fine.  Now I have a LOT of accounts and use a password vault program to store them.  It's convenient to paste, especially as they are long secure passwords and by using the copy in the vault, someone looking over my shoulder can never see the password.</p>
  
  <p>So, my question is --  What are the reasons for preventing password pasting to a website?  Does this actually increase security?</p>
  
  <p>(Please don't argue the use of the password vault.  At 200+ passwords, needing a different password for each, it's the most secure method I have)</p>