=== Why is the difficulty going up / down? ===
The network tries to maintain 1 block being solved per minute over 2016 blocks before retargeting difficulty. If miners have found more than 1 block per minute during the previous 2016 blocks the network difficulty will go up to bring the average block time back to 1 per minute. If miners are solving blocks slower the opposite will happen.
=== Why is my hash rate going up and down? ===
The X16r algo consists of 16 different algos, and the order is based on the last 16 bits of the last block. We can get a better displayed hashrate on ccminer/nevermore by adding the following to the end of the bat file:
-N 600
== Community type questions ==