I could see that if a person wanted to go back and see why a process failed only to find the log deleted.
You know, if the box for cleaning up *.edl files also allowed a person to enter *.log then it would be perfect. You could choose a cleanup frequency for both and set it to whatever you wanted.
I think that would be ideal for the 1.1.0.9 XP release that, deep inside, you know you really want to make :-)