I'd like to add that I was completely wrong about my issues. I thought it was my slow CPU miners, but it can't be because as everyone else said, the diff should have just increased variance, but I switched to Middlecoin (which is locked at 1024 diff) and I'm getting no REJECTED shares. So sorry for that confusion, but I only seem to have this problem on Wafflepool, which is too bad. I've tried multiple Wafflepool servers, but just get continuous REJECTED shares. I'll keep trying, I really want to mine here. Thanks to all for the information and suggestions.
Definitely sounds like something wrong with your stratum proxy. Are you using the stratum CPU miner, or longpoll?
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@wafflepool: I would say replace the miners page with a summary of how many miners we have in various hashrate brackets. Something like:
51.2MH+: 4 miners
25.6MH-51.2MH: 6 miners
12.8MH-25.6MH: 10 miners
6.4MH-12.8MH: 30 miners
3.2MH-6.4MH: 20 miners
1.6MH-3.2MH: 20 miners
800KH-1.6MH: 200 miners
400KH-800KH: 130 miners
200KH-400KH: 150 miners
100KH-200KH: 100 miners
0-100KH/s: 100 miners
Provides an interesting stats summary, whereas the current miners page has grown fairly useless except as a competition to see where you sit in the pool.