I have never voted on consideration for precisely the reason you started this thread -- the choices have never made any sense to me, and the effort required to decipher what the options mean is far greater than the amount that I care about any consideration I've seen. After having read this thread, I finally understand what the choices are supposed to represent.
Maybe I'm just... cognitively challenged, but I think it is very possible that there are others who have the same problem. In which case, the current wording is lowering the level of participation. (...then again, perhaps it is just keeping us idiots out...)
I would definitely prefer something like
() keep () change () reap () abstain
(I'm not crazy about "nada" either.)