Thanks. Based on that, it sounds like maybe I don't need to be running a P2Pool. Doesn't benefit anybody much and it's just causing me heart-ache. :-)

I will continue running the bitcoind node, however.

Regarding http://bitcoin.advmapper.com:9332/static/

1: How can I tell if people are using my P2Pool node?
2: If I don't mine, is there any reason to host a P2Pool node?
3: My GetBlockTemplate latency is rarely/barely under 1 sec, even with just P2Pool and Bitcoind running. Why? CPU usage is almost nothing, disks are SSDs and there appears to be no swapping happening.
4: How do people find a P2Pool node to use, and what kinds of things helps them make the decision about which is best for them?
5: Is the P2Pool network hurting for nodes, or is there a surplus of nodes and it's just miners that are missing?

I have access to lots of CPU for brief computationally intensive tasks (4 cores, 3+ gHz), but I have maximums on system load. The server has a system load of 0.05. P2Pool never seems to get above 10% CPU. Disk is generally idle, and disks are SSDs, nothing appears to be swapping.

I will take my other off-topic questions to the main thread. Thanks.

Regarding http://bitcoin.advmapper.com:9332/static/

1: How can I tell if people are using my P2Pool node?
2: If I don't mine, is there any reason to host a P2Pool node?
3: My GetBlockTemplate latency is never under 1 sec, even with just P2Pool and Bitcoind running. Why?
4: How do people find a P2Pool node to use, and what kinds of things helps them make the decision about which is best for them?