Since there are no moderators or admins that can ban an account for bad behaviour , they can only mute them in their own community, it's a good thing to have downvotes availeble to correct misbehaviour when needed.

But as always with a force of power some use it for personal grudge .

I've seen negativity in downvotes whale wars are not the kind of wars you want to get involved in.

most of that was back in the steem days . Downvotes have played a big part in educating people not to copy paste anything you find on the internet and source porperly. If you are hurt by downvotes you must have done something wrong and most of the times the downvoter explains why . At least i always explain why if i downvote manualy .
And the downvote trail i follow does the same .

Blurt is only good for those that don't care about copyrights .