I think a lot of people are still just upset about this because Halo was such a staple in a lot of our lives. My entire high school experience wouldn't have been the same if it wasn't for Halo. We played Halo LAN 2v2/3v3/4v4 at least 4-5 times a week. Basically any chance we could get an even amount of people together and an open house, we had a LAN. Same with Halo 2.
A lot of people purchased Xbox Ones specifically to help recreate the magic. I encouraged and hoped people would do so. The game was completely and utterly broken for weeks, a couple months. There were multiple days of 6-8 hrs sessions trying to play CUSTOM games and only being able to get a game or two in. Between the party system, party chat, the actual games party issues, and everything else. They shipped the game under false pretenses, the game was essentially unplayable to a lot of people and they still continued the advertise the game as if nothing was wrong. They kept promising these huge sweeping fixes which for the most part never materialized until recently, but it's too late now. The damage is done, people either traded in the game or their xbox's completely. This combined with Microsoft charging me for Xbox Live when I had renewed a card on my account for 3 months about a week prior just was enough for me.
I have been screwed by Microsoft's policies in the past and overlooked them cus I generally loved the console and what they were trying to do. I have overlooked a lot of stuff that other people made a huge deal about, I've spent A LOT of my money on their products, and have convinced other people to do so as well, so excuse me if your 'they'll fix it next patch comments' seem to fall on deaf ears. I'm sick of being treated like an idiot, and I'm pretty much over the Xbox division on the whole at this point.
The only reason I haven't gotten rid of the console is because I generally do love some of their games, and some of the friends I've made on Xbox I don't interact with anywhere else. I'm hoping they'll get their shit together but I'm past the point where I'm going to hold my breathe. PC gaming has been treating me pretty well, and unless something significant changes, I doubt I'll be buying another console after this generation.