I posted many blog posts trying to explain it. I couldn't make sense. People indicated the platform would need to be designed differently. In actuality it wouldn't. Just remove the down vote and change the flag to a REPORT button to report spam, abuse, plagiarism. Though you can down vote via CLI and other methods as well.

If I go anywhere to buy a product I vote with my money. No one else has the right to walk up to me and take that money out of my hand simply because they do not like what I am buying. That is effectively what the down vote does in terms of steem power.