> Many useful comments on HN are downvoted without reason, or otherwise petty reasons. This userscript automatically upvotes any downvoted/grayed-out comments to counteract this phenomenon.
A script to make arbitrary upvotes to counter arbitrary downvotes fixes nothing.
I'm not certain, but I assume HN attempts to detect bot-driven voting and that this script might get people banned. A sequence of posts being upvoted faster than would be humanly possible is an obvious sign that a human isn't doing the voting. I'd be careful using this from an account you actually care about.
There are definitely comments with merit that get downvoted for no reason, but there are also a lot of comments that absolutely deserve to be downvoted. Do you theorize that those will still be adequately penalized despite people theoretically using your script?