Undertale - Fandomwise, at some point I feel like I missed something and I started having zero idea what the everyone was talking about anymore, but I thought the game itself was good, and I still think the game is good tbh. I still really like all the characters, I love the soundtrack (MEGALOVANIA very much included), I'm subscribed to the newsletter, and I'll sometimes play Sans in SSBU because Sans is cool!!
Raymond from ACNH - He was my favorite from the new ACNH villagers when they were announced, I have him on my island, and I still like the little business kitty! I'm not gonna change my mind because of—oddly literal—flea markets or people who got unhealthily angry over his existence and took it out on others.
Shaman King - I'm not aware of there being a general consensus of people not liking Shaman King (aside from some infamously problematic aspects, which for the record I'm also not fond of, nor want to defend) or making fun of it, but I felt like including it because I'm in the very weird position of both thinking it's horribly written and genuinely loving it to bits. Not "it's so bad it's good", no, I was completely fixated on it in my teens and was nearly as obsessed with the recent anime. Like, binging each set of episodes as soon as they released and then watching them a second time. I love the characters and there's certain parts that make me actually bawl.
It's like... it feels like an extremely messy first draft, and personally I think a lot of it is just kind of stupid, or comes out of nowhere, and I don't think it ever really knew where it was going. But it also feels like there was a lot of heart put into it, so I love it anyway??
Self-inserty otome games - I sometimes see stuff from the English otome community that can get downright derisive towards content geared more towards self-inserting or POV-based/yumejoshi content and the people who like it, especially when a game like that gets announced for a localization. I don't want to play invisible matchmaker for the heroine, I want to use her as the vehicle through which I romance the anime men I want to romance. I can appreciate otome protagonists as their own characters, but you can bet that how much I like them is also going to depend on how easy it is for me to project myself onto them, and I will 100% replace them in my head if I feel like they're not cutting it for me. (Absolutely nothing against players who like to approach otome from a shipping/matchmaking perspective, just to be clear here.)
And on a similar note, Character x Reader fanfics. I don't really seek these out much anymore now that I have dating sims I can play lol, but before I had those, I absolutely thrived on these. They certainly weren't all winners, but there were some really good ones out there if you were willing to look hard enough (and believe me, I was).
Also sometimes I'll unironically call a dog a "doggo" or a "pupper" and you can't stop me