If you aren't going to have a cut off point for what is considered solving the problem and what is considered ancillary, then you can define new languages where a zero byte input stands for whatever solution you want, simultaneously one-upping everyone and contributing nothing to the conversation.
Unless the test of "human-ness" is the ability to drag a slider, or whoever it is that you interact with the captcha, picking the least swirled of a set of images is solving the captcha because that is the test of human-ness. This seems fairly cut and dry to me.
