@gjacobse said in Why do we have a downvote limit?:

While I'll defer to @scottalanmiller, it's likely to reduce some 'personal' opinion level votes. I'd rate them at 'vengeance' votes.

^ this.
If left unchecked, things can get nasty and really sour the place.

Also, obligatory xkcd:

https://imgs.xkcd.com/comics/duty_calls.png