If pplns worked like you claimed it could be hopped, miners dropping out dont make your shares magically worth more or pplns pools would be hopped whenever they had a hashrate drop. pplns shares are worth the same more or less no matter what the entire hashrate of the pool is, it's just with a lower poolwide hashrate you end up with a higher % of shares per last n shares so you get a bigger slice of the less frequent block reward.
Do you understand english, and yes users dropping out long enough DOES increase your share value if you continue mining, read below if you even care. Your logic that PPLNS would be monitored to get hopped when hashrate drop is silly, now you are assuming people can predict when a block would get hit aswell, LMAO.
PPLNS work exactly as I stated, if we both start a PPLNS block at same time with same hashrate and submit same shares and I stop mining then you would effectively get a bigger slice of the pie for your shares, my shares would reduce in value over time and the difference would in effect get added to the remaining miners(you in this case).
PPLNS can be viewed as Prop with share loss to miners who stop mining, there is nothing special about it. If there is 2 users with 1GH each on a pplns pool and one of the users leave for long enough then I would FOR FREE get the difference and in this case total of 50BTC all to myself with no rewards going to the guy who quit. This is exactly why you could see more earnings aside from luck on p2pool due to PPLNS penalising users quitting within a block period, not sure how you got to hopping since none of this points to me suggesting its possible to hop it, please stop eating bath salts.
Please read up and understand how PPLNS actually works and how your earnings gets affected when you stop mining on a PPLNS pool since you dont seem to understand or simply want to play stupid with your replies.