email clients

Came across this posting recently. Oh that the following recommendations were actually implemented somewhere...

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]                           |
 +------------------------------------------------------------+