I think that most users would like to see a comparison between other window managers which contend for the title of "lightweight" and Moksha. For example, dwm on my system uses ~32MB VSZ and ~11MB RSS:
$ ps aux | grep -E '(^USER|dwm)' | grep -v grep
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
strajder 1029 0.0 0.2 31548 11264 tty1 S 19:48 0:03 dwm