The Op has here all sort of opinions, mostly bullish.
On the permabulls, let me quote myself:
https://bitcointalksearch.org/topic/m.6544981"They buy, with sacred faith, screaming like a kamikaze "to da moon", the ones you want to sell, no matter the price.
Then, since they are very strong people, with very powerful hands, they hold them, even against all trends. They hold and hold, even losing 80%.
They are always the last bulls standing. So, when they finally give up, losing 90% or something, they easily sell their bitcoins to you on the bottom. You see why it has to be the bottom? When even the perma bulls give up, almost everyone is a bear and, therefore, almost all the people that were willing to sell, already sold. Since there are few sellers, the price has to go up...
How nice are perma bulls, they help us on the top and at the bottom."
I don't know nothing for shore about the future price, but with the present data (mainly, the breach of the 380 support on bitstamp and a major lower low at 339) and fundamental terms (serious problems on China), it's much more risky to keep bitcoins than to sell them.
It's much easier to just keep them, hoping for better days, that might come only in the end of the year or next year, than to sell them and, specially, to have the guts to buy them again. Many times, a trader sells with a loss making a good decision, because the price drops, but then just hesitates in fear and ends up buying again too late. Perhaps, higher than the price he sold. Selling isn't easy, specially, losing money, but buying again might be even more hard. Losing puts the fear of the market on the bones of any inexperienced trader.
In doubt, you can always sell only a part of them.