Yeah, I agree
That's the reason why MasterPool is switching to PPLNS. Have a look at https://masterpool.eu/statistics
This charts are averaged over 24 hours. After finding a block we have spikes of about 300 GHash/s. This is not a problem for the pool, but members opted for PPLNS in order to avoid pool hopping. It is implemented and will be activated within the next weeks.
IMHO this started with BTC prices falling to $3. I can understand that most miners need to increase their income. But for the loyal pool members this is a problem
Regular pool hopping started about a year ago, but didn't become popular until the short-lived 'Multipool' pool and then really took off with bitHopper and Cherrypicker hopperware. I think the reduction in the number of proportional payout pools is responsible for increased poolhopping activity on the remaining proportional pools more so than the drop in btc price.
Maybe the drop in btc price means that poolhoppers can stay mining when it would be unprofitable for regular GPU miners, which will mean even more hoppers compared to regular miners. But I don't see many people resorting to hopping because
of the price drop. (waiting for a bunch of miners now to comment that I'm wrong and that's exactly what they did
@deepceleron, did you get those graphs from the pool or a website that monitors pools? There was mPerth's stats
which was a great resource, but it's been down a while now.