Just so I get this right, that's 10% tax to claim my rewards, and 5% to power up, total 15% tax if I'm here for the long term. Whilst for those who want instant power down, it's 20% tax. The 5% tax difference between those who are here for the long term and those who aren't isn't a lot when you're talking about 15% - 20%.
As to the tax pool, given that there will be inflow every day, where does the remaining 98% go please?
2% of the pool is dripped out daily to all HP holders. And it would be 10% to cash out rewards for half, as half isnt powered up.