People who mass downvote, with or without scripts, are better dealt separately - it's vote manipulation, those people shouldn't be voting up or down on first place.

Disagree, the downvoters would just pick a default reason

You're still doing two clicks to downvote someone, instead of just one. And in the meantime there's always some room to think "why am I downvoting this again?"

And perhaps I'm judging other users too much based on my own usage of the downvote button, but often I'd rather have a way to say why I'm downvoting it - because someone were rude, or because they're babbling bullshit, etc. I tend to believe that other people are like this too, but perhaps I'm wrong, dunno.

For reference, Slashdot uses a similar-ish system; except that it does it towards people voting up. I see "types of upvotes" problematic because often good content checks multiple boxes, but the rough idea works.

Honestly… after reading another guy’s comment, I am more inclined to just say fuck it and say we return to the forums, no upvotes or downvotes, things neatly categorized into their place (specially so sensible things can be hidden but still available) and if someone wants to interact they’d have to comment.

The problem with this approach is that chronological sorting leads to a lot of trash, as people know that their shitpost will be still highly visible for the others. Kind of like 4chan.