My thoughts, as someone who discovered bitshares in September:
If PTS had been forever closed to me at the time I discovered bitshares, I wouldve been very frustrated. I would not have continued investigating bitshares, and I would not have bought a bunch of PTS and BTSX.
If you lock out everyone who does not currently have AGS or PTS from EVER acquiring a stake in the genesis shares of new DACs, then you will cause a huge number of people who discover us later to feel they have missed the boat, that they cannot participate in these new DACs, and they will leave, and not become members of the bitshares community.
So I think it is critical that we do NOT forever shut off any way to buy into the PTS/AGS genesis shares of new DACs.
Also, if we did that, and PTS then went to 0, there would be a TON of people out there going "Bitshares is dead, the price is zero". You would see BTSX go back to 1 cent, purely based on idiots who didnt understand anything dumping. People outsdie our community dont understand the difference between PTS and BTSX, they would see PTS go to 0 and would then forever avoid this whole bitshares thing.
**************
That said, obviously continuing to waste money on mining is bad, so we should either:
1) Convert PTS to DPoS.
or
2) Combine AGS/PTS into a new 'Bitshare' unit, and have this be DPoS.
Whatever it is, it needs to be tradable, so that newcomers can buy in.