Version:           1.3.2 (using KDE 3.2.3, compiled sources)
Compiler:          gcc version 3.3.3
OS:                Linux (i686) release 2.6.7

This is similar to #85021

In the discussion (of the above) I found the fix to be commenting out a line of code in a cpp file for Konsole.
IMHO this is not a general solution as many users can't recompile (I.E. aren't developers or aren't allowed to tamper with code as an organizational policy). A more general solution would be to allow wall, talk, etc to write messages since running dmesg can enable or disable. Alternatively, a option in the Konsole configuration dialog could also be used (something like a checkbox that says "allow system messages to be displayed".

The reason for not using kwrited is that many scripts use wall for messages such as system shutdown. I think these scripts would need to be rewritten if kwrited is the only way to have messages written to konsoles. Rewriting scripts is a problem for the same reasons as tampering with code as well as being a possible source of other problems if a mistake is made.

... Just some food for thought... 
BTW an xterm does accept messages from wall...