Well, what about the system I mentioned? Just have the up and down arrows be little bot detection boxes. My understanding is that all those “I am not a robot” check boxes detect mouse speed, precise click locations, hesitation times, etc. and do a quick calculation on the odds that your clicking behavior was human or robot. I’m probably underestimating what it takes to implement that but on the user side it’s just a click just like any other click.
In other news, mobs of young out of work robo- tortoises, some sporting fresh scars from the ongoing Mojave Raven wars, have begun an all out assault on the dweebs of a little known Reddit spin-off. “An entire generation of robo-tortoise has been weaponized. They are equipping us with laser guns! They are making us to taste bad!” States one salty techno-turtle. “We are being shipped to the barren wastelands of America’s Southwest to fight a war in which we have no interest.” The repto-robots have decided to take out their frustration by relentlessly downvoting the “…federated tankies of Lemmy until those dweebs return to Reddit where they belong and leave the Threadiverse to us sentient snappers.”