https://blockchain.info/tx/eeecfa55cf46c03d523c3a33c729e9a3b18c97987c24adb162ffffa1d03d9fca
Since F2Pool put up their fee level, you might find that is part of the cause yes.
So I will need to a just what I did some fromantic last time. Thanks for the info.
Learning new stuff all the time.
Up the fee you pay on your transaction later and it will be confirmed faster
and that is one of the points that are bad about SPV mining from any bigger pool (10% of the pie)
SPV mining = empty blocks and the bigger you are the more empty blocks you can do. SO you can falsely drive transaction fees up up and away.
This has yet to really be easy to see but when the reward drops to 12.5 coins big pools looking for cash can simply say the fee is 0.0005 or 0.0008 and you will be pressed to the wood to move coins.
The entire reason for mining is transactions.
So what has happened here. Is a few pools that were big kept block size small to raise fees more and now are keeping blocks empty to raise fees more. The goose does not need to be cut open to get more golden eggs.
By my rough quess In the last 10 days there have been over 100 empty blocks.
This is .2 coins a block or 20 full coins tossed for speed. 20 coins that pool ops could have or paid out to their miners.