The only way to deal with anything 'abusive' on Steem is by coordinated action. Build consensus that the activity is abusive, and then band together to take action. Even with downvote pool, downvote has always been more 'expensive' than upvoting.

As long as 'good actors' outnumber bad, it is only the cowardice, greed, and lack of coordination of the good that enables the bad to continue unchecked.

“Bad men need nothing more to compass their ends, than that good men should look on and do nothing.” ~John Stuart Mill