Basically one important question we need to ask ourselves: do we care mostly about long-term investors who are willing to stake their STEEM token long term - or would we rather attract short-term investors.

Steem will need both long-term and short-term investors who can tie up their funds in Stempower and with 4 weeks of powerdown as I see it will attract more investors. I have to deal with investors and 13 weeks PD is not easy to explain with funds locked over that time even though they view Steem as a long term investment.

Investors are looking for dividends and it is our job to show what opportunities there are in Steem in the long term. Of course, I also tell them about the risks that can result in losses and I give no guarantee.

I would also think long-term investors will be happy for 4 weeks PD
We have to see it on their part too for long term investors are here much longer than 4 weeks.

It's also easy to imagine that all current accounts currently powering down would speed up such a process. And short term I would expect enormous selling pressure to apprear, causing probably wave of panic.

Yes, I see that danger can come with all current accounts currently powering down such a process. This is another topic that should be taken into consideration and nice if it can be brought forward by those who are strong in math on this