Interesting charts and I found myself on some. I have bought some $HIVE, but most is earned. Lately I've been making at least as much from curation as from posting and that is likely to continue. I've powered down to pay for things like Hivefest, but not for a while as the price is too low really to cash out. In the long run I'd like to take some income from Hive to treat myself.
I suspect that in a year the top 200 will all have over 100k as numbers are increasing. The middle class has a big impact on how rewards are spread and I'd like to see it grow.
Mind you, this is the uppermost part of the middle class, which does look healthy. However, as I look at the lower middle class, I suspect it might tell a different story.
The orcas tend to be well engaged with Hive, but the dolphins may be more likely to give up. We need to ensure that good content gets support at all levels, but it really needs people who are into each topic to support that community. I mainly support the stuff I like rather than trying to game curation.