try "yeah of course, one of the great things about bitcoin is that it lets you invest in all these new decentralized blockchain based startup companies that otherwise would have been bought by VCs behind closed doors"

This is truly absurd, its been like 2 hours now.  I have never seen anything like this before.

We need more DoTs!  More DoTs!

Now thats a price peg!

As I understand it from their forum, one custodians wall accidentally hit another custodians wall at some point in last few days. That may also help explain a one-off spike in volume if that's what occurred (?).

Its not just one trade.  There are repeated trades of tens of thousands of nubits each over the past few hours. 
Every time bitcoin moves significantly, there are big nubits trades.

I think it is perhaps two bots trading into each other, where one of them is updating to the bitcoin price much more quickly than the other, and doing big buys or sells based on that.

once BTSX/bitUSD has a direct route to fiat and BitShares/Assets are marketed to non crypto folks it won't matter wtf Bitcoin does.

Yes.  But for now, it DOES matter what bitcoin does.  BTSX price is still partially linked to btc price. 

I think we saw the bottom in bitcoin.  (At least for a while).   Hopefully this is the start of a rally in all crypto.

BTSX did well in this decline, it dropped less than BTC.  Now its time for it to go up faster as well.

It made sense before the MUSIC DAC was announced.  But now PTS is up ~50% since the announcement.  So you would be getting a lot less PTS now.