What are you talking about? The network hash dropped a huge amount, this was due to kicking off the hoard of OW1 Asics that were hitting the raven network. It was at 21.6 terahash and now it's right around 9th/s, that's over a 50% drop with the week time to allow everyone to change pools and get back on it (including new gpu miners)
The network hash dropped but how about the difficulty? If the hashrate drops the difficulty should be reduce but look at the difficlty it is still the same as the past few months and the reward you are mining daily is the same as before this is just base on my experience because I am mining raven coin since January.
And the reason why the network hash drop it's because there is a little drop on hashrate my mining rig is mining with 90+ hashrate on average but right I'm only getting around 80+ and sometimes lower than that. So it means they are just drop mining hashrate a little so that it will look like they fix the FPGAs and ASIC issue.