I’m sure it’s feasible, with enough knowledge and effort. How does the connector of each keyboard look? Do you have an oscilloscope or at least a multimeter to poke the keyboards with? And you’ll be needing that Arduino, either for translating it to the builtin kb port or to USB.
I think they said that they technically don’t block ads. They just don’t implement them. If youtube were to somehow pack ads into the video stream, they wouldn’t go around it. Though I’m sure that in such case an adblock extension would pop up very fast.
I like the thought behind this idea but I don't think it's a good solution. It requires having a reputation score, which I think outweighs the positives here. I could also see people trying to play this system in a couple different ways, which is just plain bad for discussion culture: encourage others to downvote something without spending the reputation yourself, or collect downvotes with bait content in order to eat through other peoples reputation.
Downvotes aren't intended for the subject of the news, but for OP for making the post. If you hate the subject, I guess the correct action is to express it in the comments, or give an upvote if someone else already did.
A karma score encourages making poor quality meme posts and comments in large quantities to gain more fake internet points. It's easily abused; Reddit is full of karma farming bots.
No downvotes was also mentioned here, but I heavily disagree. Downvotes, in my opinion are mostly a positive thing. Youtube hiding downvotes was a move towards a "good vibes only, no criticism allowed" type of environment.
Lemmy pretty much meets my ideal in this regard, it has downvotes and doesn't have a broken social credit system.