This is a very democratic approach. Someone else would probably exclude from the community those who simply withdraw money. But such drastic actions scare people.

I don't know how to encourage people to build their account. Prizes? Eligibility for Curation Trail when reaching 1000 or 5000 SP. Apparently it's too much for the Curation Trail.

So we just have to keep telling it

It seems to me that all the moderators are talking about it. So far, the result is not very good. Apparently the reason is that Steemit is positioned as "you want to make money just by writing posts."