Why are we all mad at Hartman? I feel like I'm missing a lot of backstory here. I'm usually just reading fanfic and he obviously doesn't come up there much. What did I miss?
Honestly, you’re not the only one that’s missed the happenings with Butch. I wasn’t really aware until pretty recently the extent of how things are/were/seem to be.
I would say that it probably all started back when Danny Phantom was first on Nick. Butch had denounced basically any m/m pairing that people had started to ship together which caused the Phandom to split in half, one side taking Butch’s words to heart, the other completely going against him. This insinuated the Phandom Wars(explained a little further in this post). Luckily I was not a part of this whatsoever and didn’t find out about it until very recently.
Continuing from that, Butch has since tried to interact with the Phandom again, but people feel that it seems like he doesn’t really care about the show all that much. He’s been known in the past to tease phans with little snippits of DP or saying that “maybe it’ll come back, who knows” on multiple occasions. When in reality Butch does not own Danny Phantom anymore, he sold the rights to Nickelodeon(which to his credit he did state in one or more of his youtube videos later on).
I personally feel that everything really started spiraling out of control after the presidential election, though. After the election was over, it came to light that Butch was a Trump supporter, which put all of those already salty LGBTQ+ phans and supporters over the edge.
Then there’s this video that was released on the 20th, in which Butch states 107 facts about Danny Phantom. A lot of which most hardcore phans already knew, and a couple of which added even more fuel to the fire such as 16:59 where he discusses why Danny wears a shirt with his bathing suit(many people take this as him trying to debunk the trans!Danny headcanon that’s been floating around for a while), and 4:45 where he states that ghosts aren’t the spirit of the dead, but just monsters from another dimension. Which clearly contradicts the actual show, but I digress.
And of course the most recent cause for debate is this video where Team Phantom was animated again with the original voice actors no less!! Which a lot of people got heated about and criticized a bit, myself included, admittedly. But you can find my standpoint on that here that I wish more people would take to heart.
So, overall I guess it just comes down to the fact that it seems that Butch did a lot of stuff that got on people’s nerves and eventually everyone had had enough of it.