I should say   PTS

It has not held up to basic scrutiny:

http://www.reddit.com/r/Bitcoin/comments/1rpx26/mastercoin_is_a_joke/

+1

The foundation should have done it in parallel since day 1, at least lobby Cryptsy/Bter etc to add MSC too. The latter is happening now btw...

Whether diversifying  your crypto portfolio or looking to liquidate your crypto assets...

With the D'ex coming soon why are the few selling so cheaply.?.

Long before you know there will be a group who will say, "man
I wish i wouldve never sold my mastercoins".

Actually i encourage those who wish to sell but realistically
Its very healthy for the market to rid itself of the weakhands.

May 2014 be a prosperous year for you.

Best regards
Peer2peer360

Following the incident reported by Doron404 below, here is a summary of what transpired (timestamp in UTC +13hrs):

09-12-2013 8:41:42
I received an escrow request from Doron404 (buyer) for an MSC trade with Peezr (seller) worth a total of 2.88 BTC

09-12-2013 11:51:46
I sent out a PM to buyer & seller containing Trade Details based on information received from Doron404 through the escrow form. The Trade Details PM requested both parties to verify that the information contained therein was correct, and if so to proceed according to the instructions.

Escrow address given was: 1HjQ76Ssnoqof8Bb2Fifi28M1VJWV5maGF

09-12-2013, 14:50:35
I received a PM from Doron404 asking what happened to the BTC which he just sent to xxx since the MSC has not been delivered.

09-12-2013, 14:55:57
I received a PM from Doron404 asking if escrow address was xxx, suspecting that Peezr had swapped the escrow address with the BTC receiving address when replying with a quote.

09-12-2013, 15:27:42
I sent PM to Doron404 confirming that the escrow address was 1HjQ76Ssnoqof8Bb2Fifi28M1VJWV5maGF as per my original PM, but has been swapped by the seller. This was said based on the quote from Peezr embedded in Doron404's PM to me.

Who is liable for this loss?
In my Trade Details PM, I requested both parties to use the "Reply to All" button when communicating, so that the entire conversation regarding a particular trade can be easily tracked by all parties. I did not foresee this potential exploit, and hence did not warn users to refer to original PM when sending to escrow.

I have successfully executed 93 escrow trades totalling 682.76 BTC using this this system before this incident.
If there is consensus amongst the community that I am liable, I am prepared to compensate Doron404 for this scam.

I would also like to announce that I will be ceasing to act as an escrow agent in this thread with immediate effect.

Pouncer

JR on the other hand has thus far about $20 million from MSC, does not contribute to the project, and has stated that he will sell 1% of his Bitcoins when his personal MSC holdings are valued at about $450 million (assuming it's 1,000USD/BTC, when it's .7 BTC/MSC, which in my opinion is conservative).