XFCE 4.2.0, Xft resolution, DBus and ssh-agent

[LiNuCe]

Hello,

   I'm currently packaging XFCE 4.2.0 for Linux Slackware 10.0. I have 
noticed that default xinitrc script for XFCE set Xft resolution to 96 
(instead of using default X resolution) and try to start the dbus daemon 
and ssh-agent. Here are my questions :

   1) Why do not use the default Xft resolution ? On 72/75 DPI screen, 
it's a bad idea to set Xft resolution to 96 DPI as it give a very huge 
font size.
   2) Why DBus usz used for in XFCE ? Is it really usefull in XFCE ?
   3) Why does the script start ssh-agent ? Is it really usefull in XFCE ?

   Thanks for your answer. Keep on the good work.

-- 
LiNuCe