too many idiotts on the pool, no profit. 
That's not how it works. We need as many miners as we can get to solve as many blocks as possible. The more miners, the better that chance, it's a proportional payout of the work performed. Sure your payout might be smaller, but you would be getting more of them.
the point is you can only mine here with a (more) profitable gpu in comparison to scrypt
HD6990 - it makes 2540 cpm here / 940 kH/s with scrypt / o.k. here
R9 290X - it makes 1350 cpm here / 850 kH/s with scypt / not o.k. here
BUT with the fast open-cl-miner my R9 290X makes 2530 cpm - this is o.k., but only at the beeeeeer-pool
https://bitsharestalk.org/index.php?topic=2598.0
hope NaN will implement other pool-support
when you mine at a smaller pool the luck-factor becomes bigger in comparison to mining at a greater pool(s)
Yes, it would be great to have standardized mining software, sort of like the cgminer/bfgminer in the BTC world. With PTS the majority of the good mining software is closed source and that is worrisome, i.e. no peer review. On the other hand, there does seem to be free market options at play. You sort of pick your miner based of the pool you want to support and how much tax you want to pay. (Pool tax + mining software dev tax)
Statistically variance balances out over time, weeks/month vs. hours/days with proportional payouts. You can see proof of this from BTC pools with PPLNS luck graphs. It's human nature to want faster rewards so they flock to what is paying out what seems like more on a daily basis. Over all, IF things were equal, i.e. the same mining software usable on all pools, it should average out over time. It's just math.
What is frustrating is this nebulous factoring you have to keep track of by gathering the yield not only from your total CPM, what you should actually be making with all your hardware by doing math, but the taxes levied from the pool and their supported mining software. The question then becomes where do I want to point my mining farm at based on the best pool/mining software combination after determining all the variables.
Ah good times, the life of a miner...
There is no set it and forget it, but that is why we do it right? Tinker and tweak every last drop of performance out of hardware for the greatest yield.
