Re: should xterm-mouse-mode be on by default?

[Richard Stallman]

    xterm-mouse-mode is missing some very useful functionality (at least
    IMO): 
     - it is not possible to double-click to select a word/line/etc.
     - it is not possible to select text with the mouse in emacs and then
     use mouse-2 to paste in another xterm, or emacs. How would you copy
     text from an emacs running in an ssh session in an xterm? 

    A lot of users use these features, so IMO it is not a good idea to
    turn on xterm-mouse-mode by default at this point. 

I don't follow the logic.  While the failure to implement some mouse
features is clearly a drawback, why would it be better to implement
none than to implement some?  I don't see it.