This could be used as a vehicle to try to reduce the supply of Hive tokens in circulation but the easiest available way to do that without making drastic changes is to increase the rewards of having a large stake of Hive Power which comes in the form of increasing the weight of people’s ability to distribute rewards proportional to their Hive Power balance. That has the result of making whales more powerful.
Unless there is a popular trend floating around that I’m currently ignorant of, Its my understanding that most users leave their default reward settings on 50/50 which creates a fork in this flow of distribution, but the strategies suggested in the article to achieve token retention can target HP, the issue with this is most people favor instant gratification over delayed gratification so people still have to choose on their own if they want to power down their HP, but the simple inclusion for this is into the strategies suggested in the article to accept HIVE tokens as payment for goods and or services which would serve the purpose of cutting into the percentage of tokens that are traveling to the market before they leave the platform.