I think this year 2016 will also be remembered as a bad year for bitcoin due to recent bitfinex hack. In which 1,00,000+ bitcoin were stolen which is comparatively big and due to which market get dumped so hard.
I don't think that we can call it a bad year for Bitcoin just because of one event that occurred. Although, the price did drop quite a lot around the middle of the year but it is going back up, so that is definitely not a bad thing.