Not sure if anyone saw, but yesterday Spoony started a commentary on "To Boldly Flee", and at the very start went into more detail about why his relationship ended with Channel Awesome. Here is the breakdown.
It was not due to Lupa. He thinks it didn't help the situation, but it was not the root cause. Lupa didn't have some vendetta versus him that caused it.
He felt he was losing a lot of money coming out to do the anniversary shows, so he wanted to get paid for the work, rather then just expenses covered. He said they were not going to do that, which annoyed him. He knows it makes him sound greedy but he was tired of losing money on the big crossover projects.
He learned about Doug killing off the Nostalgia Critic, and the new project idea will require a lot of people moving to Chicago to focus on it with Doug and Rob. Spoony sort of hinted that he was offered to join them, but didn't want to do it because he would have to give up his own website and didn't feel like he would be secure in Chicago.
He ended his overall reasons basically saying he didn't really need them. He felt like the whole relationship in general was very one sided in that he was getting nothing out of posting his videos on TGWTG. He didn't see any more traffic to his site and he is not sure if his videos were even really bringing more traffic to their site. Only 1% of his own traffic was from TGWTG links.
After that, he just went into the "politics" of working at Channel Awesome, which in his opinion has gotten out of hand because there are too many people. Certain critics get top billing on the ticker and the homepage at the expense of many other critics, which buries them under layers and layers on the website. Many critics have to pick a day to post far in advance just so they can squeeze into the top or side ticker and get noticed.
It's some interesting insight. Obviously some of it is probably biased, and I am sure it's not anywhere near the whole story, but it helps at least know this was not just something that happened because of a Twitter joke and more something that seemed to be building over time due to differences.
P.S. Actually he goes into even greater detail then I assumed. Really, you should just watch it. Even what I wrote here does not cover everything, it's just a sample.