I think it's worth noting that with other pools you would have zero chance of getting paid for shares discarded during bad luck times. At least here those shares are never forgotten.
However, unlike PPLNS, you also have no chance of ever being paid more than PPS.
You win some you lose some

Yeah I'm not sure that a tiny chance of a dust payment at some unknown time in the future is worth much of anything. Maybe if you could transfer it to someone else for free.

The purpose of pools is supposed to be to get rid of those very small possibilities and indefinite timelines, isn't it?
PPLNS will pay some shares multiple times, and some shares not at all. Approximately half of income will be from shares will be paid more than PPS, and half your income from shares paid less than PPS. So being paid more than PPS by PPLNS is not a "very small possibility" on an "indefinite timeline", but a normal part of mining.
Umm, yeah, I was referring to CPPSRB.

Yes, there's a chance that those buried shares I have on the Eligius pool might one day pay out, but if it ever happens most likely I'll never even know about it, because I don't ever check on them any more. Those shares *are* forgotten by me. I guess if they ever get paid out that they'll eventually get escheated to the state.