Well what the fuck did these people expect after the halvin? And it's only going to continue to decline in my opinion because there will be more miners and the block reward will continue to half until there isn't a block reward/no new Bitcoin is generated. Transaction fees alone will not be enticing enough for miners because of how expensive it is to set up and run in the first place. This will ultimately lead to bitcoin's demise if it doesn't die from the other problems it has first.