I read this article(the link above) a few days ago. He thinks that it may have another flag war after having free downvotes after HF21, but yet he's not sure whether it'll be good for the community or not. But it's better to try then do nothing. I agree with that, however, I doubt the effect. The data of steem is public, it may get revenge of downvotes(I do that😊) After the flag war, people would get a balance point, and things will go back to the start, there won't be significant change. I suggest another added feature: make it possible to transfer the free downvote quota binded with the permlink(encrypted) to another people who may have higher prestige, SP, and they downvote after evaluation. It can be transferred to multiple people, and the free downvote can be used totally, afterward, it cost mana or free downvote quota of the downvoter.
Besides, many people was complaining about bid-bot. I want to refute it seriously. There are three kinds of demand of steem: investors who speculates the price will go up and they'll get profits, people who want to support good content, people who want to gain their voice. The price of steem have gone down for a long time, so the first kind is not much. As for the second, few people wouldn't spend so much time on understanding the complicate system of steem for an altruistic action. So the third, vote-buyer's need is vital! In fact, it was also noted in the white or blue book. I post a meaning comic here. However, I can't contact the author, so I can't post the pictures directly and writes the subtitles.
The downvoters thinks I buy vote to get high pay, and gets into trending articles, may exclude rewards, attention of other good content, and flagging me is a balance, to lower the reward of my post. It's the tragedy of the commons. And the solution to to have a proper regulation. But steem is anarchic in some degree, it's hard to get it. I bring up a solution: split the reward pool, if the upvote value of listed bid-bot ID gets over a certain percentage, the reward come from the bid-bot reward pool, and vice versa. Then there would be another method to inhibit votes selling. Though I doubt if it have a good impact on the community or the steem price.