Re: Mode line changes

[Richard Stallman]

    That's not always true -- at some point, the mode-line become busy and
    prone to problems with accidental clicks:  if you try to click on a
    modeline widget, and miss by a character, it may be better that nothing
    happens than something unwanted does; the more crowded with active
    regions the modeline gets, the greater the chance for such mishaps.

That is a very good point.  The smaller an active area is, the harder
it is to use, and the more error prone it becomes.

If the mouse click brings up a menu, rather than taking immediate
action, that more or less avoids the error problem.  It does not
reduce the inconvenience problem.

(I am not sure what feature was proposed.)