Hmm maybe my memory is playing tricks on me, i know there was some slash command i was using, but that may have been a byproduct of the fact that you were using the ace-style menus (other addons like Grid that use ace menus have all the menu items accessible via command line i think).
In any case, what about making it a toggle? like /praid buff Sp would toggle on/off the buff instead of having to type enable or disable?
I guess using the abbreviated names (Fort, Sp, Spirit) or something would work. Maybe you could also add another field in the buff editor to enter what abbreviation you want to use to toggle the buff from the commandline? Not sure if that's taking it too far or not, but I'd like it
At the very least, static abbreviations for all the common buffs (including magic, disease, etc) would be awesome. Also would aid in creating macro's to enable/disable buffs.
Hope this makes sense