I'm strongly opposed to powering down having an effect on one's reputation (if intertwined with a loyalty system). The penalty of powering down is already built-in, inside the system: Reduced influence.
It is not ideal to create a system where you can get in, but you can't get out or are disgraced for doing so. We should promote the ideals of economic liberty.
As for the price trend, remember that those holding SP are also getting more coins while the price is dropping, while those who are in STEEM don't. The price means different things for different classes of investors.
Btw, if you told people back in June that in 40-50 days the price would be 0.0025, most would be ecstatic. Just because it hit 0.006+ doesn't mean that 0.0025 is a bad price.
RE: Message to All Long-Term Investors. [And My Suggestion to Steemit Developers]