@intellihandling you have a few topics in your post, but first off Steem-bounty did close down it's witness a while back.

Next the downvotes are due to the way Steem-Bounty's comments get so many votes from the same accounts over and over which with this whole "new steem" deal the whales have decided isn't something they want to allow. To be completely fair, there was plenty of actions taken against this type of voting patterns even before the new steem movement, but there just wasn't this level of voting power that could be used to attack it. With the free downvotes whales have a lot of power to go after actions they don't like now without costing them any money. At that downvoting increases their earnings (along with everyone else's) as those funds are returned to the reward pool.

Honestly with the amount of downvotes they have been getting which removes all value including both the author and curation side of those votes it would probably be better to just upvote the posts that purchase bounties and at least earn the curation.