Some comments I have seen recently people seem to think the platform is moving more towards centralization (HF20) and what benefits those at the top then moving further towards decentralization....which I was never under the impression they were decentralized to begin with.
It depends how you define it I guess but without examples of the comments, I can't comment much.
One that was easy to recall what thread it was on because I read it last night, you'll have to scroll down to Anthonyadavisii comment.
https://steemit.com/bidbots/@scottcbusiness/oddup515#@sunlit7/re-scottcbusiness-oddup515-20180823t084734240z
There's been others. Many people aren't happy with the new HF20. He may have more then one comment on that thread. You'll have to search out where he said he thinks it going more centralized.
People are worried aboit the 1.2 Steem dust amount issue but, I think it will be largely anon-event and go unnoticed by the vast majority of users as it will change other dynamics that make their positions more visible too. We'll see but all in all, HF20 should make a few improvements and harm less. There are always surprises though.
Dustsweeper comes in and upvotes my dust, I don't know if they will adjust when HF20 comes along or call it quits. I may have to buy some steem to stay ahead of the 120 or 140 threshold you mentioned. Time will tell but I just don't see how this helps people coming onto the platform and retaining them.