You would be surprised how many original fans stopped at that series. Nothing but shitty references and over used jokes, but spread over fucking 60 parts. This was also the time Arin was really fucking boring and only had 3 emotions, anger, joy and boredom. While Dan would regurgitate Reddit stories while occasionally shit talking Arin (Which was reminiscent of the older GG, but a shell of it's former self with Dan apologizing seconds later after every call out. Or doing that GOD AWFUL baby talk along side with whatever meme interested them at the time. Like singing Nickelback songs poorly.). I know this is a little off topic, but god the depression really hits when the "downfall" was nearly half a decade ago. Mr bones has had some crazy fucking rides for these two.but I think the last series of them I watched was the Kirby's Dreamcourse/Grumpcourse one (2016).