Sam, you know better than to suggest prop. If Ozcoin went prop I guarantee the bitHopper project would be resurrected.

PPLNS doesn't have any risk for the pool either.  It's also easy to verify once you understand the process your shares go through (which varies slightly by pool but keeps the same principals).  SMPPS as well, though that system has other bits the cause backlog payment issues.  Proportional is the "simplest", but by no means the only one that is easy to verify or doesn't involve operator risking bankruptcy.

Ozcoin's DGM model is very much sustainable as long as operating costs are contained.  I believe POT is OK too.  PPS just puts pools at risk because if you have a sizeable hashrate and don't hit blocks for a long time (77 million blocks) then you're paying PPS miners for accomplishing essentially non-productive work.  Even a 8% PPS rate which another pool has might seem ridiculous compared to OzCoin's 3% fee but not even a 25% fee would have saved OzCoin PPS if they went into the last 2 weeks with no buffer.

I have no idea how MtRed was able to hang on for so long - was he subsidizing the pool?

Not subsidizing the pool afaict. The pool had good luck and a positive buffer for quite a while and only had a negative buffer recently. That and the rising USD BTC rate and relying on donations (from miners the majority of whom explicitly went there to mine pps free of charge) probably made it necessary for redditorrex to close the pool.

77 million blocks would probably take a good few hundred years. That is indeed somewhat bad luck.

I'll buy the debt - how much are you due?

Ah, well, I completely understand
Edit: If I only made posts that'd I'd completely thought through, I'd have half the post count and a better reputation. Anyway, the offer still stands if you do need the coin right now.

I am a miner , OZCO, 7 BTC did not pay me . As soon as possible .pay me.thanks