Although I understand your idea, I don't like the Downvote part.
I also don't see a problem if a publication goes above 300 POB or more. If she deserved it and was truly worthy. Someone will not always win this.
So limiting how much a person earns is boring and I would be discouraged from continuing to write as they put a limit. And remembering that POB along with VIBES are one of the few tribes that few tokens have in circulation from large and well-known communities...
Taking advantage of the fact that @onealfa.pob is in the comments would be something contrary to the maximum vote he gives, for example, in LEO and which does not repeat more than 1x per month for the same user.
So writing, studying and putting together a nice post to be limited? This is boring.
Now I agree with the issue of many other posts being above this limit equal to the same @onealfa.pob posted. And simply when the content is very generic or being favored always the same... Unfortunately this happens.
That's why a few days ago I put up this proposal for curating posts that bring some kind of involvement and contest to the POB and that it's like a real POB. HERE.
As for the price, it is the market trend. The POB just adjusted its values that before were mere speculation. As long as there is a lack of real projects and causes for the tribe, we will not see values as high as before. Only if a whale decides to take an interest as it used to. But it will be soon.