I get a load of the points, but tend to give them away as I have no real use for them. I've created lots of accounts for people as I can do that for free. Creating a community costs about 12p, so not a big deal these days.
I started my account with nothing and earned bugger all to start with. I bought some as I wanted to boost my vote, but most is earned. Overall I haven't made much at the current price.
Of course there's a hierarchy, but the big accounts tended to invest effort and/or money and most of them do good work. There's not much to stop people being arseholes though. I try to avoid that stuff.
I've always said it's an imperfect system, but still better than most social media.
RE: Krill Rewards