We may wish users behaved differently. We may wish they wouldn't form mining pools. We may wish users who hold coins that belong to others, for example exchanges, always behaved competently and ethically. But we have to design our blockchain around the facts of how users actually behave, not how we think they should, or wish they would.

As I understood it, Steem originally had some of these dangers in mind. Having a 2 year power-down with 100% yearly inflation (and reverse splits) disincentivized keeping liquid STEEM on exchanges, in theory. Also in theory, it would make exchanges think twice before actually committing to powering-up depositors stake.

Setting aside this specific STEEM example, how do we express general design goals so that people not only understand their original purpose, but also stick to them when things get bumpy?