The Lighthouse

Poul-Henning Kamp (“phk” from The FreeBSD Project) had this wit back in 1999, and it's funny to see how much of it still applies today:

But let me suggest a few pop-up windows I would like to see
mail-programs implement whenever people send or reply to email
to the lists they want me to subscribe to:

      +------------------------------------------------------------+
      | Your email is about to be sent to several hundred thousand |
      | people, who will have to spend at least 10 seconds reading |
      | it before they can decide if it is interesting.  At least  |
      | two man-weeks will be spent reading your email.  Many of   |
      | the recipients will have to pay to download your email.    |
      |								   |
      | Are you absolutely sure that your email is of sufficient   |
      | importance to bother all these people ?                    |
      |								   |
      |                  [YES]  [REVISE]  [CANCEL]                 |
      +------------------------------------------------------------+

      +------------------------------------------------------------+
      |	Warning:  You have not read all emails in this thread yet. |
      |	Somebody else may already have said what you are about to  |
      |	say in your reply.  Please read the entire thread before   |
      |	replying to any email in it.                               |
      |								   |
      |			     [CANCEL]                              |
      +------------------------------------------------------------+

      +------------------------------------------------------------+
      |	Warning:  Your mail program have not even shown you the    |
      |	entire message yet.  Logically it follows that you cannot  |
      |	possibly have read it all and understood it.               |
      |								   |
      |	It is not polite to reply to an email until you have       |
      |	read it all and thought about it.			   |
      |								   |
      | A cool off timer for this thread will prevent you from     |
      | replying to any email in this thread for the next one hour |
      |								   |
      |			      [Cancel]				   |
      +------------------------------------------------------------+

      +------------------------------------------------------------+
      | You composed this email at a rate of more than N.NN cps    |
      | It is generally not possible to think and type at a rate   |
      | faster than A.AA cps, and therefore you reply is likely to |
      | incoherent, badly thought out and/or emotional.            |
      |								   |
      | A cool off timer will prevent you from sending any email   |
      | for the next one hour.			 		   |
      |								   |
      |			      [Cancel]				   |
      +------------------------------------------------------------+

Bahaha.  Especially the last one.  Bahahahaha.